論文
2024
Tuning the Direction of Photoinduced Electron Transfer in Porphyrin-Protected Gold Clusters
Y. Chiga, W. Suzuki, R. Takahata, E. Kobiyama, H. Tahara, Y. Kanemitsu, M. Shibuta, M. Sakamoto, and T. Teranishi
J. Phys. Chem. C 128, 3824–3831 (2024).
(DOI: 10.1021/acs.jpcc.3c06402)
Tesla-class single-cycle terahertz magnetic field pulses generated with a spiral-shaped metal microstructure
K. Maruyama, Z. Zhang, M. Takumi, T. Satoh, M. Nakajima, Y. Kanemitsu, and H. Hirori
Appl. Phys. Express 17, 022004 (6 pages) (2024).
(DOI: 10.35848/1882-0786/ad2909) (Spotlights 2024)
High-Order Harmonic Generation in Solids: The Role of Intraband Transitions in Extreme Nonlinear Optics
H. Hirori, S. A. Sato, and Y. Kanemitsu
J. Phys. Chem. Lett. 15, 2184–2192 (2024).
(DOI: 10.1021/acs.jpclett.3c03415) (Review)
Size Dependence of Trion and Biexciton Binding Energies in Lead Halide Perovskite Nanocrystals
K. Cho, T. Sato, T. Yamada, R. Sato, M. Saruyama, T. Teranishi, H. Suzuura, and Y. Kanemitsu
ACS Nano 18, 5723–5729 (2024).
(DOI: 10.1021/acsnano.3c11842)
Coherent electronic coupling in quantum dot solids induces cooperative enhancement of nonlinear optoelectronic responses
H. Tahara, M. Sakamoto, T. Teranishi, and Y. Kanemitsu
Nature Nanotechnol. , (7 pages) (2024).
(DOI: 10.1038/s41565-024-01601-9)
Materials Chemistry for Metal Halide Perovskite Photovoltaics
T. Nakamura, Y. Kondo, N. Ohashi, C. Sakamoto, A. Hasegawa, S. Hu, M. A. Truong, R. Murdey, Y. Kanemitsu, and A. Wakamiya
Bull. Chem. Soc. Jpn. 97, uoad025 (12 pages) (2024).
(DOI: 10.1093/bulcsj/uoad025) (Review)
In Situ Thermal Cross-Linking of 9,9'-Spirobifluorene-Based Hole-Transporting Layer for Perovskite Solar Cells
S. Daskeviciute-Geguziene, M. A. Truong, K. Rakstys, M. Daskeviciene, R. Hashimoto, R. Murdey, T. Yamada, Y. Kanemitsu, V. Jankauskas, A. Wakamiya, and V. Getautis
ACS Appl. Mater. Interfaces 16, 1206–1216 (2024).
(DOI: 10.1021/acsami.3c13950)
2023
Enhancing high harmonic generation in GaAs by elliptically polarized light excitation
F. Sekiguchi, M. Sakamoto, K. Nakagawa, H. Tahara, S. A. Sato, H. Hirori, and Y. Kanemitsu
Phys. Rev. B 108, 205201 (9 pages) (2023).
(DOI: 10.1103/PhysRevB.108.205201) (Editors' Suggestion)
Spontaneous Polarization Induced Optical Responses in a Two-Dimensional Ferroelectric Halide Perovskite
C. Higashimura, G. Yumoto, T. Yamada, T. Nakamura, F. Harata, H. Hirori, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 14, 8360–8366 (2023).
(DOI: 10.1021/acs.jpclett.3c02238)
Picosecond trion photocurrent dynamics in FAPbI3 quantum dot films
E. Kobiyama, H. Tahara, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu
Appl. Phys. Lett. 122, 252106 (5 pages) (2023).
(DOI: 10.1063/5.0154927)
Review—Photoluminescence Characterization of Halide Perovskite Materials and Solar Cells
T. Handa, T. Yamada, and Y. Kanemitsu
ECS J. Solid State Sci. Technol. 12, 056004 (5 pages) (2023).
(DOI: 10.1149/2162-8777/acd660)
Temperature dependence of photoluminescence spectrum of single lead halide perovskite nanocrystals: Effect of size on the phase transition temperature
K. Cho, T. Yamada, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu
J. Chem. Phys. 158, 201104 (8 pages) (2023).
(DOI: 10.1063/5.0143201)
Bilayer Indium Tin Oxide Electrodes for Deformation-Free Ultrathin Flexible Perovskite Solar Cells
N. Ohashi, R. Kaneko, C. Sakai, Y. Wasai, S. Higuchi, K. Yazawa, H. Tahara, T. Handa, T. Nakamura, R. Murdey, Y. Kanemitsu, and A. Wakamiya
Sol. RRL 7, 2300221 (7 pages) (2023).
(DOI: 10.1002/solr.202300221)
Generation of third-harmonic spin oscillation from strong spin precession induced by terahertz magnetic near fields
Z. Zhang, F. Sekiguchi, T. Moriyama, S. C. Furuya, M. Sato, T. Satoh, Y. Mukai, K. Tanaka, T. Yamamoto, H. Kageyama, Y. Kanemitsu, and H. Hirori
Nature Commun. 14, 1795 (7 pages) (2023).
(DOI: 10.1038/s41467-023-37473-1)
Tripodal Triazatruxene Derivative as a Face-On Oriented Hole-Collecting Monolayer for Efficient and Stable Inverted Perovskite Solar Cells
M. A. Truong, T. Funasaki, L. Ueberricke, W. Nojo, R. Murdey, T. Yamada, S. Hu, A. Akatsuka, N. Sekiguchi, S. Hira, L. Xie, T. Nakamura, N. Shioya, D. Kan, Y. Tsuji, S. Iikubo, H. Yoshida, Y. Shimakawa, T. Hasegawa, Y. Kanemitsu, T. Suzuki, and A. Wakamiya
J. Am. Chem. Soc. 145, 7528-7539 (2023).
(DOI: 10.1021/jacs.3c00805)
Evaluation of electron-phonon interactions in halide perovskites toward semiconductor optical refrigeration
Y. Yamada, Y. Kajino, and Y. Kanemitsu
Proc. SPIE 12437, 1243704 (5 pages) (2023).
(DOI: 10.1117/12.2655039)
Mid-infrared pulse generation using multi-plate white-light generation and optical parametric amplification in LiGaS2 crystals
K. Nakagawa, N. Ishii, Y. Kanemitsu, and H. Hirori
Appl. Phys. Express 16, 032001 (5 pages) (2023).
(DOI: 10.35848/1882-0786/acbd83)
Synergistic Surface Modification of Tin–Lead Perovskite Solar Cells
S. Hu, P. Zhao, K. Nakano, R. D. J. Oliver, J. Pascual, J. A. Smith, T. Yamada, M. A. Truong, R. Murdey, N. Shioya, T. Hasegawa, M. Ehara, M. B. Johnston, K. Tajima, Y. Kanemitsu, H. J. Snaith, and A. Wakamiya
Adv. Mater. 35, 2208320 (11 pages) (2023).
(DOI: 10.1002/adma.202208320)
2022
Polarization anomaly in high harmonics in the crossover region between perturbative and extreme nonlinearity in GaAs
F. Sekiguchi, G. Yumoto, H. Hirori, and Y. Kanemitsu
Phys. Rev. B 106, L241201 (6 pages) (2022).
(DOI: 10.1103/PhysRevB.106.L241201)
Composition–Property Mapping in Bromide-Containing Tin Perovskite Using High-Purity Starting Materials
T. Nakamura, K. Otsuka, S. Hu, R. Hashimoto, T. Morishita, T. Handa, T. Yamada, M. A. Truong, R. Murdey, Y. Kanemitsu, and A. Wakamiya
ACS Appl. Energy Mater. 5, 14789-14798 (2022).
(DOI: 10.1021/acsaem.2c02144)
Exciton–Phonon and Trion–Phonon Couplings Revealed by Photoluminescence Spectroscopy of Single CsPbBr3 Perovskite Nanocrystals
K. Cho, H. Tahara, T. Yamada, H. Suzuura, T. Tadano, R. Sato, M. Saruyama, H. Hirori, T. Teranishi, and Y. Kanemitsu
Nano Lett. 22, 7674-7681 (2022).
(DOI: 10.1021/acs.nanolett.2c02970)
Biexciton dynamics in halide perovskite nanocrystals
G. Yumoto and Y. Kanemitsu
Phys. Chem. Chem. Phys. 24, 22405-22425 (2022).
(DOI: 10.1039/D2CP02826C) (2022 PCCP HOT Articles) (Review)
Molecular Engineering of Enamine-Based Hole-Transporting Materials for High-Performing Perovskite Solar Cells: Influence of the Central Heteroatom
D. Vaitukaityte, M. A. Truong, K. Rakstys, R. Murdey, T. Funasaki, T. Yamada, Y. Kanemitsu, V. Jankauskas, V. Getautis, and A. Wakamiya
Sol. RRL 6, 2200590 (8 pages) (2022).
(DOI: 10.1002/solr.202200590)
A convenient method for assessing steady-state carrier density and lifetime in solar cell materials using pulse excitation measurements
T. Handa, T. Yamada, and Y. Kanemitsu
J. Chem. Phys. 157, 084201 (9 pages) (2022).
(DOI: 10.1063/5.0101926)
Halide perovskite nanocrystals: Unique luminescence materials
Y. Kanemitsu
J. Lumin. 251, 119207 (6 pages) (2022).
(DOI: 10.1016/j.jlumin.2022.119207) (Review)
Rapidly expanding spin-polarized exciton halo in a two-dimensional halide perovskite at room temperature
G. Yumoto, F. Sekiguchi, R. Hashimoto, T. Nakamura, A. Wakamiya, and Y. Kanemitsu
Sci. Adv. 8, eabp8135 (9 pages) (2022).
(DOI: 10.1126/sciadv.abp8135)
Size-controlled quantum dots reveal the impact of intraband transitions on high-order harmonic generation in solids
K. Nakagawa, H. Hirori, S. A. Sato, H. Tahara, F. Sekiguchi, G. Yumoto, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu
Nat. Phys. 18, 874-878 (2022).
(DOI: 10.1038/s41567-022-01639-3) (News & Views)
Metal-free ferroelectric halide perovskite exhibits visible photoluminescence correlated with local ferroelectricity
T. Handa, R. Hashimoto, G. Yumoto, T. Nakamura, A. Wakamiya, Y. Kanemitsu
Sci. Adv. 8, eabo1621 (8 pages) (2022).
(DOI: 10.1126/sciadv.abo1621)
LiNbO3-type Polar Antiferromagnet InVO3 Synthesized under High-Pressure Conditions
Z. Tan, J. Lussier, T. Yamada, Y. Xu, T. Saito, M. Goto, Y. Kosugi, D. Vrublevskiy, Y. Kanemitsu, M. Bieringer, and Y. Shimakawa
Angew. Chem. Int. Ed. 61, e202203669 (4 pages) (2022).
(DOI: 10.1002/anie.202203669)
Electron-phonon interactions in halide perovskites
Y. Yamada and Y. Kanemitsu
NPG Asia Materials 14, 48 (15 pages) (2022).
(DOI: 10.1038/s41427-022-00394-4) (Review)
Anti-stokes photoluminescence from CsPbBr3nanostructures embedded in a Cs4PbBr6 crystal
Y. Kajino, S. Otake, T. Yamada, K. Kojima, T. Nakamura, A. Wakamiya, Y. Kanemitsu, and Y. Yamada
Phys. Rev. Materials 6, L0430001 (7 pages) (2022).
(DOI: 10.1103/PhysRevMaterials.6.L043001)
Optimized carrier extraction at interfaces for 23.6% efficient tin–lead perovskite solar cells
S. Hu, K. Otsuka, R. Murdey, T. Nakamura, M. A. Truong, T. Yamada, T. Handa, K. Matsuda, K. Nakano, A. Sato, K. Marumoto, K. Tajima, Y. Kanemitsu, and A Wakamiya
Energy Environ. Sci. 15, 2096-2107 (2022).
(DOI: 10.1039/D2EE00288D)
2021
Collective enhancement of quantum coherence in coupled quantum dot films
H. Tahara, M. Sakamoto, T. Teranishi, and Y. Kanemitsu
Phys. Rev. B 104, L241405 (5 pages) (2021).
(DOI: 10.1103/PhysRevB.104.L241405)
Generation of wavelength-tunable few-cycle pulses in the mid-infrared at repetition rates up to 10 kHz
Y. Sanari, F. Sekiguchi, K. Nakagawa, N. Ishii, Y. Kanemitsu, and H. Hirori
Opt. Lett. 46, 5280-5283 (2021).
(DOI: 10.1364/OL.440228)
Mixed lead–tin perovskite films with >7 μs charge carrier lifetimes realized by maltol post-treatment
S. Hu, M. A. Truong, K. Otsuka, T. Handa, T. Yamada, R. Nishikubo, Y. Iwasaki, A. Saeki, R. Murdey, Y. Kanemitsu, and A. Wakamiya
Chem. Sci. 12, 13513-13519 (2021).
(DOI: 10.1039/D1SC04221A)
Luminescence Fine Structures in Single Lead Halide Perovskite Nanocrystals: Size Dependence of the Exciton–Phonon Coupling
K. Cho, T. Yamada, H. Tahara, T. Tadano, H. Suzuura, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu
Nano Lett. 21, 7206-7212 (2021).
(DOI: 10.1021/acs.nanolett.1c02122)
Ultrastrong coupling between THz phonons and photons caused by an enhanced vacuum electric field
Z. Zhang, H. Hirori, F. Sekiguchi, A. Shimazaki, Y. Iwasaki, T. Nakamura, A. Wakamiya, and Y. Kanemitsu
Phys. Rev. Research 3, L032021 (6 pages) (2021).
(DOI: 10.1103/PhysRevResearch.3.L032021)
Light emission from halide perovskite semiconductors: bulk crystals, thin films, and nanocrystals
T. Yamada, T. Handa, Y. Yamada, and Y. Kanemitsu
J. Phys. D: Appl. Phys. 54, 383001 (14 pages) (2021).
(DOI: 10.1088/1361-6463/ac0e58) (Review)
Determination of localized surface phonons in nanocrystalline silicon by inelastic neutron scattering spectroscopy and its application to deuterium isotope enrichment
T. Matsumoto, I. Nomata, T. Ohhara, and Y. Kanemitsu
Phys. Rev. Materials 5, 066003 (9 pages) (2021).
(DOI: 10.1103/PhysRevMaterials.5.066003)
Polaron masses in CH3NH3PbX3 perovskites determined by Landau level spectroscopy in low magnetic fields
Y. Yamada, H. Mino, T. Kawahara, K. Oto, H. Suzuura, and Y. Kanemitsu
Phys. Rev. Lett. 126, 237401 (6 pages) (2021).
(DOI: 10.1103/PhysRevLett.126.237401)
On the progress of ultrafast time-resolved THz scanning tunneling microscopy
T. Tachizaki, K. Hayashi, Y. Kanemitsu, and H. Hirori
APL Mater. 9, 060903 (7 pages) (2021).
(DOI: 10.1063/5.0052051)
Strong spin-orbit coupling inducing Autler-Townes effect in lead halide perovskite nanocrystals
G. Yumoto, H. Hirori, F. Sekiguchi, R. Sato, M. Saruyama, T. Teranishi, and Y. Kanemitsu
Nature Commun. 12, 3026 (7 pages) (2021).
(DOI: 10.1038/s41467-021-23291-w)
Observation of high carrier mobility in CH3NH3PbBr3 single crystals by AC photo-Hall measurements
T. Kimura, K. Matsumori, K. Oto, Y. Kanemitsu, and Y. Yamada
Appl. Phys. Express 14, 041009 (4 pages) (2021).
(DOI: 10.35848/1882-0786/abf02b)
Enhancing the hot-phonon bottleneck effect in a metal halide perovskite by terahertz phonon excitation
F. Sekiguchi, H. Hirori, G. Yumoto, A. Shimazaki, T. Nakamura, A. Wakamiya, and Y. Kanemitsu
Phys. Rev. Lett. 126, 077401 (6 pages) (2021).
(DOI: 10.1103/PhysRevLett.126.077401)
Near-Ultraviolet Transparent Organic Hole-Transporting Materials Containing Partially Oxygen-Bridged Triphenylamine Skeletons for Efficient Perovskite Solar Cells
M. A. Truong, H. Lee, A. Shimazaki, R. Mishima, M. Hino, K. Yamamoto, K. Otsuka, T. Handa, Y. Kanemitsu, R. Murdey, and A. Wakamiya
ACS Appl. Energy Mater. 4, 1484-1495 (2021).
(DOI: 10.1021/acsaem.0c02677)
Spectral characterization of the Rashba spin-split band in a lead halide perovskite single crystal by photocurrent heterodyne interference spectroscopy
Y. Ogawa, H. Tahara, N. Igarashi, Y. Yamada, and Y. Kanemitsu
Phys. Rev. B 103, L081201 (6 pages) (2021).
(DOI: 10.1103/PhysRevB.103.L081201)
High-order harmonic generation in graphene: Nonlinear coupling of intra- and interband transitions
S. A. Sato, H. Hirori, Y. Sanari, Y. Kanemitsu, and A. Rubio
Phys. Rev. B 103, L041408 (6 pages) (2021).
(DOI: 10.1103/PhysRevB.103.L041408)
Interference effects in high-order harmonics from colloidal perovskite nanocrystals excited by an elliptically polarized laser
K. Nakagawa, H. Hirori, Y. Sanari, F. Sekiguchi, R. Sato, M. Saruyama, T. Teranishi, and Y. Kanemitsu
Phys. Rev. Materials 5, 016001 (6 pages) (2021).
(DOI: 10.1103/PhysRevMaterials.5.016001)
Terahertz Scanning Tunneling Microscopy for Visualizing Ultrafast Electron Motion in Nanoscale Potential Variations
S. Yoshida, Y. Arashida, H. Hirori, T. Tachizaki, A. Taninaka, H. Ueno, O. Takeuchi, and H. Shigekawa
ACS Photonics 8, 315-323 (2021).
(DOI: 10.1021/acsphotonics.0c01572)
Impact of spin-orbit splitting on two-photon absorption spectra in a halide perovskite single crystal
K. Ohara, T. Yamada, T. Aharen, H. Tahara, H. Hirori, H. Suzuura, and Y. Kanemitsu
Phys. Rev. B 103, L041201 (6 pages) (2021).
(DOI: 10.1103/PhysRevB.103.L041201)
2020
Materials Chemistry Approach for Efficient Lead-Free Tin Halide Perovskite Solar Cells
T. Nakamura, T. Handa, R. Murdey, Y. Kanemitsu, and A. Wakamiya
ACS Appl. Electron. Mater. 2, 3794-3804 (2020).
(DOI: 10.1021/acsaelm.0c00859) (Review)
Highly Luminescent CsPbBr3@Cs4PbBr6 Nanocrystals and Their Application in Electroluminescent Emitters
Z. Bao, H.-D. Chiu, W. Wang, Q. Su, T. Yamada, Y.-C. Chang, S. Chen, Y. Kanemitsu, R.-J. Chung, and R.-S. Liu
J. Phys. Chem. Lett. 11, 10196-10202 (2020).
(DOI: 10.1021/acs.jpclett.0c03142)
Terahertz pulse-altered gene networks in human induced pluripotent stem cells
T. Tachizaki, R. Sakaguchi, S. Terada, K. Kamei, and H. Hirori
Opt. Lett. 45, 6078-6081 (2020).
(DOI: 10.1364/OL.402815)
Phonon, thermal, and thermo-optical properties of halide perovskites
T. Handa, T. Yamada, M. Nagai, and Y. Kanemitsu
Phys. Chem. Chem. Phys. 22, 26069-26087 (2020).
(DOI: 10.1039/D0CP04426A) (2020 PCCP HOT Articles) (Review)
Optical responses of lead halide perovskite semiconductors
Y. Kanemitsu, T. Yamada, T. Handa, and M. Nagai
Semicond. Sci. Technol. 35, 093001 (13 pages) (2020).
(DOI: 10.1088/1361-6641/ab95b1) (Review)
Role of virtual band population for high harmonic generation in solids
Y. Sanari, H. Hirori, T. Aharen, H. Tahara, Y. Shinohara, K. L. Ishikawa, T. Otobe, P. Xia, N. Ishii, J. Itatani, S. A. Sato, and Y. Kanemitsu
Phys. Rev. B 102, 041125(R) (7 pages) (2020).
(DOI: 10.1103/PhysRevB.102.041125)
Large thermal expansion leads to negative thermo-optic coefficient of halide perovskite CH3NH3PbCl3
T. Handa, H. Tahara, T. Aharen, A. Shimazaki, A. Wakamiya, and Y. Kanemitsu
Phys. Rev. Materials 4, 074604 (8 pages) (2020).
(DOI: 10.1103/PhysRevMaterials.4.074604)
Modifying angular and polarization selection rules of high-order harmonics by controlling electron trajectories in k-space
Y. Sanari, T. Otobe, Y. Kanemitsu, and H. Hirori
Nature Commun. 11, 3069 (7 pages) (2020).
(DOI: 10.1038/s41467-020-16875-5)
Sn(IV)-free tin perovskite films realized by in situ Sn(0) nanoparticle treatment of the precursor solution
T. Nakamura, S. Yakumaru, M. A. Truong, K. Kim, J. Liu, S. Hu, K. Otsuka, R. Hashimoto, R. Murdey, T. Sasamori, H. D. Kim, H. Ohkita, T. Handa, Y. Kanemitsu, and A. Wakamiya
Nature Commun. 11, 3008 (8 pages) (2020).
(DOI: 10.1038/s41467-020-16726-3)
Reduction of Optical Gain Threshold in CsPbI3 Nanocrystals Achieved by Generation of Asymmetric Hot-Biexcitons
E. Kobiyama, H. Tahara, R. Sato, M. Saruyama, T. Teranishi, and Y. Kanemitsu
Nano Lett. 20, 3905-3910 (2020).
(DOI: 10.1021/acs.nanolett.0c01079)
Effect of A-site cation on photoluminescence spectra of single lead bromide perovskite nanocrystals
S. Masada, T. Yamada, H. Tahara, H. Hirori, M. Saruyama, T. Kawawaki, R. Sato, T. Teranishi, and Y. Kanemitsu
Nano Lett. 20, 4022-4028 (2020).
(DOI: 10.1021/acs.nanolett.0c01417)
Band‐Edge Luminescence from Oxide and Halide Perovskite Semiconductors
Y. Kanemitsu and Y. Yamada
Chem. Asian J. 15, 709-717 (2020).
(DOI: 10.1002/asia.201901639) (Review)
Photoluminescence of CVD-grown MoS2 modified by pH under aqueous solutions toward potential biological sensing
T. Seki, T. Ihara, Y. Kanemitsu, and Y. Hayamizu
2D Materials 7, 034001 (9 pages) (2020).
(DOI: 10.1088/2053-1583/ab712d)
Improvement in Quantum Yield by Suppression of Trions in Room Temperature Synthesized CsPbBr3 Perovskite Quantum Dots for Backlight Display
K. Dave, Z. Bao, S. Nakahara, K. Ohara, S. Masada, H. Tahara, Y. Kanemitsu, and R.-S. Liu
Nanoscale 12, 3820-3826 (2020).
(DOI: 10.1039/C9NR09056H)
Photon recycling in perovskite CH3NH3PbX3 (X = I, Br, Cl) bulk single crystals and polycrystalline films
T. Yamada, Y. Yamada, and Y. Kanemitsu
J. Lumin. 220, 116987 (6 pages) (2020).
(DOI: 10.1016/j.jlumin.2019.116987)
Triplet management for efficient perovskite light-emitting diodes
C. Qin, T. Matsushima, W. J. Potscavage Jr, A. S. D. Sandanayaka, M. R. Leyden, F. Bencheikh, K. Goushi, F.Mathevet, B. Heinrich, G. Yumoto, Y. Kanemitsu, and C. Adachi
Nature Photon. 14, 70-75 (2020).
(DOI: 10.1038/s41566-019-0545-9)
Quantum Interference Measurements and Their Application to Analysis of Ultrafast Photocarrier Dynamics in Semiconductor Solar Cell Materials
H. Tahara and Y. Kanemitsu
Adv. Quantum Technol. 3, 1900098 (12 pages) (2020).
(DOI: 10.1002/qute.201900098) (Review)
2019
Upconverted excitonic photoluminescence from a two-dimensional lead-halide perovskite
T. Yamada, T. Aharen, and Y. Kanemitsu
J. Chem. Phys. 151, 234709 (6 pages) (2019).
(DOI: 10.1063/1.5129779) (Featured) (JCP Editors' Choice 2019)
One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs-Cu-I system
T. Jun, T. Handa, K. Sim, S. Iimura, M. Sasase, J. Kim, Y. Kanemitsu, and H. Hosono
APL Mater. 7, 111113 (6 pages) (2019).
(DOI: 10.1063/1.5127300) (Featured) (Scilight)
Excitonic enhancement of optical nonlinearities in perovskite CH3NH3PbCl3 single crystals
K. Ohara, T. Yamada, H. Tahara, T. Aharen, H. Hirori, H. Suzuura, and Y. Kanemitsu
Phys. Rev. Materials 3, 111601(R) (6 pages) (2019).
(DOI: 10.1103/PhysRevMaterials.3.111601)
Trion dynamics in lead halide perovskite nanocrystals
Y. Kanemitsu
J. Chem. Phys. 151, 170902 (11 pages) (2019).
(DOI: 10.1063/1.5125628) (Editor's Pick) (Review)
Photophysics of lead-free tin halide perovskite films and solar cells
T. Handa, A. Wakamiya, and Y. Kanemitsu
APL Mater. 7, 080903 (11 pages) (2019).
(DOI: 10.1063/1.5109704) (Review)
Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3 perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy
K. Kojima, K. Ikemura, K. Matsumori, Y. Yamada, Y. Kanemitsu, and S. F. Chichibu
APL Mater. 7, 071116 (6 pages) (2019).
(DOI: 10.1063/1.5110652) (Editor's Pick)
Ionization and Neutralization Dynamics of CsPbBr3 Perovskite Nanocrystals Revealed by Double-Pump Transient Absorption Spectroscopy
S. Nakahara, K. Ohara, H. Tahara, G. Yumoto, T. Kawawaki, M. Saruyama, R. Sato, T. Teranishi, Y. Kanemitsu
J. Phys Chem. Lett. 10, 4731-4736 (2019).
(DOI: 10.1021/acs.jpclett.9b01554)
Ultrafast reflectivity change of vanadium dioxide induced by THz field enhanced by a metallic structure
T. Tachizaki, A. N. Hattori, H. Tanaka, and H. Hirori
Jpn. J. Appl. Phys. 58, 083002 (4 pages) (2019).
(DOI: 10.7567/1347-4065/ab2e97)
Large negative thermo-optic coefficients of a lead halide perovskite
T. Handa, H. Tahara, T. Aharen, and Y. Kanemitsu
Sci. Adv. 5, eaax0786 (8 pages) (2019).
(DOI: 10.1126/sciadv.aax0786)
Impact of Orbital Hybridization at Molecular-Metal Interface on Carrier Dynamics
M. Sakamoto, K. Hyeon-Deuk, D. Eguchi, I.-Y. Chang, D. Tanaka, H. Tahara, A. Furube, Y. Minagawa, Y. Majima, Y. Kanemitsu, and T. Teranishi
J. Phys Chem. C 123, 25877-25882 (2019).
(DOI: 10.1021/acs.jpcc.9b04231)
Coherent Spectroscopy of Multiple Excitons in Colloidal Nanocrystal Quantum Dots
H. Tahara and Y. Kanemitsu
ChemNanoMat 5, 977-984 (2019).
(DOI: 10.1002/cnma.201900218) (Review)
Subcycle transient scanning tunneling spectroscopy with visualization of enhanced terahertz near field
S. Yoshida, H. Hirori, T. Tachizaki, K. Yoshioka, Y. Arashida, Z.-H. Wang, Y. Sanari, O. Takeuchi, Y. Kanemitsu, and H. Shigekawa
ACS Photonics 6, 1356-1364 (2019).
(DOI: 10.1021/acsphotonics.9b00266)
Effects of Impurity Doping on Photoluminescence Properties of APbX3 Lead Halide Perovskites
Y. Yamada, M. Hoyano, K. Oto, and Y. Kanemitsu
Phys. Status Solidi B 256, 1800545 (4 pages) (2019).
(DOI: 10.1002/pssb.201800545)
High-order harmonic generation from hybrid organic–inorganic perovskite thin films
H. Hirori, P. Xia, Y. Shinohara, T. Otobe, Y. Sanari, H. Tahara, N. Ishii, J. Itatani, K. L. Ishikawa, T. Aharen, M. Ozaki, A. Wakamiya, and Y. Kanemitsu
APL Mater. 7, 041107 (4 pages) (2019).
(DOI: 10.1063/1.5090935) (Editor's Pick)
Up-converted photoluminescence from CH3NH3PbI3 perovskite semiconductors: Implications for laser cooling
T. Yamada, T. Aharen, and Y. Kanemitsu
Phys. Rev. Materials 3, 024601 (9 pages) (2019).
(DOI: 10.1103/PhysRevMaterials.3.024601) (Editors' Suggestion)
Structure-property relations in Ag-Bi-I compounds: potential Pb-free absorbers in solar cells
A. Koedtruad, M. Goto, M. A. Patino, Z. Tan, H. Guo, T. Nakamura, T. Handa, W.-T. Chen, Y.-C. Chuang, H.-S. Sheu, T. Saito, D. Kan, Y. Kanemitsu, A. Wakamiya, and Y. Shimakawa
J. Mater. Chem. A 7, 5583-5588 (2019).
(DOI: 10.1039/c8ta11227d)
Analysis of nonradiative recombination in quantum dot solar cells and materials
L. Zhu, K.-H. Lee, M. Yamaguchi, H. Akiyama, Y. Kanemitsu, K. Araki, and N. Kojima
Prog Photovolt. Res. Appl. 27, 971-977 (2019).
(DOI: 10.1002/pip.3110)
Ultrafast Control of Ferroelectricity with Dynamical Repositioning of Protons in a Supramolecular Cocrystal Studied by Femtosecond Nonlinear Spectroscopy
T. Umanodan, K. Kaneshima, K. Takeuchi, N. Ishii, J. Itatani, H. Hirori, Y. Sanari, K. Tanaka, Y. Kanemitsu, T. Ishikawa, S. Koshihara, S. Horiuchi, and Y. Okimoto
J. Phys. Soc. Jpn. 88, 013705 (4 pages) (2019).
(DOI: 10.7566/JPSJ.88.013705) (Editors' Choice)
2018
Observation of Positive and Negative Trions in Organic-Inorganic Hybrid Perovskite Nanocrystals
N. Yarita, T. Aharen, H. Tahara, M. Saruyama, T. Kawawaki, R. Sato, T. Teranishi, and Y. Kanemitsu
Phys. Rev. Materials 2, 116003 (8 pages) (2018).
(DOI: 10.1103/PhysRevMaterials.2.116003)
Zener tunneling breakdown in phase-change materials revealed by intense terahertz pulses
Y. Sanari, T. Tachizaki, Y. Saito, K. Makino, P. Fons, A. V. Kolobov, J. Tominaga, K. Tanaka, Y. Kanemitsu, M. Hase, and H. Hirori
Phys. Rev. Lett. 121, 165702 (6 pages) (2018).
(DOI: 10.1103/PhysRevLett.121.165702)
Quantitative monitoring of the internal field in the depletion layer of a GaAs-based solar cell with terahertz radiation
K. Miyagawa, M. Nagai, G. Yamashita, M. Ashida, C. Kim, H. Akiyama, and Y. Kanemitsu
Appl. Phys. Lett. 113, 163501 (4 pages) (2018).
(DOI: 10.1063/1.5037952)
Longitudinal optical phonons modified by organic molecular cation motions in organic-inorganic hybrid perovskites
M. Nagai, T. Tomioka, M. Ashida, M. Hoyano, R. Akashi, Y. Yamada, T. Aharen, and Y. Kanemitsu
Phys. Rev. Lett. 121, 145506 (6 pages) (2018).
(DOI: 10.1103/PhysRevLett.121.145506)
Photoelectronic properties of lead-free CH3NH3SnI3 perovskite solar cell materials and devices
T. Handa, T. Aharen, A. Wakamiya, and Y. Kanemitsu
Proc. SPIE 10737, 107371X (10 pages) (2018).
(DOI: 10.1117/12.2322700)
Suppression of Trion Formation in CsPbBr3 Perovskite Nanocrystals by Postsynthetic Surface Modification
S. Nakahara, H. Tahara, G. Yumoto, T. Kawawaki, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu
J. Phys. Chem. C 122, 22188-22193 (2018).
(DOI: 10.1021/acs.jpcc.8b06834)
Helix Induction to Polyfluorenes Using Circularly Polarized Light: Chirality Amplification, Phase-Selective Induction, and Anisotropic Emission
Y. Wang, T. Harada, L. Q. Phuong, Y. Kanemitsu, and T. Nakano
Macromolecules 51, 6865-6877 (2018).
(DOI: 10.1021/acs.macromol.8b01453)
Lead‐Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation
J. Liu, M. Ozaki, S. Yakumaru, T. Handa, R. Nishikubo, Y. Kanemitsu, A. Saeki, Y. Murata, R. Murdey, and A. Wakamiya
Angew. Chem. Int. Ed. 57, 13221-13225 (2018).
(DOI: 10.1002/anie.201808385)
Photophysics of metal halide perovskites: from materials to devices
Y. Kanemitsu, and T. Handa
Jpn. J. Appl. Phys. 57, 090101 (17 pages) (2018).
(DOI: 10.7567/JJAP.57.090101)
Quantum coherence of multiple excitons governs absorption cross-sections of PbS/CdS core/shell nanocrystals
H. Tahara, M. Sakamoto, T. Teranishi, and Y. Kanemitsu
Nat. Commun. 9, 3179 (8 pages) (2018).
(DOI: 10.1038/s41467-018-05698-0)
Intrinsic and extrinsic drops in open-circuit voltage and conversion efficiency in solar cells with quantum dots embedded in host materials
L. Zhu, H. Akiyama, and Y. Kanemitsu
Sci. Rep. 8, 11704 (12 pages) (2018).
(DOI: 10.1038/s41598-018-30208-z)
Radiative recombination and electron-phonon coupling in lead-free CH3NH3SnI3 perovskite thin films
T. Handa, T. Aharen, A. Wakamiya, and Y. Kanemitsu
Phys. Rev. Materials 2, 075402 (9 pages) (2018).
(DOI: 10.1103/PhysRevMaterials.2.075402)
Coherent detection of THz-induced sideband emission from excitons in the nonperturbative regime
K. Uchida, T. Otobe, T. Mochizuki, C. Kim, M. Yoshita, K. Tanaka, H. Akiyama, L. N. Pfeiffer, K. W. West, and H. Hirori
Phys. Rev. B 97, 165122 (7 pages) (2018).
(DOI: 10.1103/PhysRevB.97.165122)
Hot Biexciton Effect on Optical Gain in CsPbI3 Perovskite Nanocrystals
G. Yumoto, H. Tahara, T. Kawawaki, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu
J. Phys. Chem. Lett. 9, 2222-2228 (2018).
(DOI: 10.1021/acs.jpclett.8b01029)
Photorefractive Effect in Organic-Inorganic Hybrid Perovskites and Its Application to Optical Phase Shifter
H. Tahara, T. Aharen, A. Wakamiya, and Y. Kanemitsu
Adv. Opt. Mater. 6, 1701366 (6 pages) (2018).
(DOI: 10.1002/adom.201701366)
Analysis of future generation solar cells and materials
M. Yamaguchi, L. Zhu, H. Akiyama, Y. Kanemitsu, H. Tampo, H. Shibata, K.-H. Lee, K. Araki, and N. Kojima
Jpn. J. Appl. Phys. 57, 04FS03 (6 pages) (2018).
(DOI: 10.7567/JJAP.57.04FS03)
Photophysics of organic-inorganic hybrid perovskite solar cells
H. Tahara, T. Handa, and Y. Kanemitsu
Proc. SPIE 10527, 1052702 (10 pages) (2018).
(DOI: 10.1117/12.2288282)
Near-band-edge optical responses of CH3NH3PbCl3 single crystals: Photon recycling of excitonic luminescence
T. Yamada, T. Aharen, and Y. Kanemitsu
Phys. Rev. Lett. 120, 057404 (6 pages) (2018).
(DOI: 10.1103/PhysRevLett.120.057404)
Review–Light Emission from Thin Film Solar Cell Materials: An Emerging Infrared and Visible Light Emitter
Y. Kanemitsu, M. Okano, L. Q. Phuong, and Y. Yamada
ECS J. Solid State Sci. Technol. 7, R3102-R3110 (2018).
(DOI: 10.1149/2.0151801jss)
2017
Harmonic quantum coherence of multiple excitons in PbS/CdS core-shell nanocrystals
H. Tahara, M. Sakamoto, T. Teranishi, and Y. Kanemitsu
Phys. Rev. Lett. 119, 247401 (6 pages) (2017).
(DOI: 10.1103/PhysRevLett.119.247401)
Impact ionization dynamics in silicon by MV/cm THz fields
A. T. Tarekegne, H. Hirori, K. Tanaka, K. Iwaszczuk, and P. U. Jepsen
New J. Phys. 19, 123018 (7 pages) (2017).
(DOI: 10.1088/1367-2630/aa936b)
Impact of Postsynthetic Surface Modification on Photoluminescence Intermittency in Formamidinium Lead Bromide Perovskite Nanocrystals
N. Yarita, H. Tahara, M. Saruyama, T. Kawawaki, R. Sato, T. Teranishi, and Y. Kanemitsu
J. Phys. Chem. Lett. 8, 6041-6047 (2017).
(DOI: 10.1021/acs.jpclett.7b02840)
Impact of Chemical Doping on Optical Responses in Bismuth-doped CH3NH3PbBr3 Single Crystals: Carrier Lifetime and Photon Recycling
Y. Yamada, M. Hoyano, R. Akashi, K. Oto, and Y. Kanemitsu
J. Phys. Chem. Lett. 8, 5798-5803 (2017).
(DOI: 10.1021/acs.jpclett.7b02508)
Solvent-Coordinated Tin Halide Complexes as Purified Precursors for Tin-based Perovskites
M. Ozaki, Y. Katsuki, J. Liu, T. Handa, R. Nishikubo, S. Yakumaru, Y. Hashikawa, Y. Murata, T. Saito, Y. Shimakawa, Y. Kanemitsu, A. Saeki, and A. Wakamiya
ACS Omega 2, 7016-7021 (2017).
(DOI: 10.1021/acsomega.7b01292)
Nonlinear photocarrier recombination dynamics in mixed-halide CH3NH3Pb(I1-xBrx)3 perovskite thin films
L. Q. Phuong, I. L. Braly, J. K. Katahara, H. W. Hillhouse, and Y. Kanemitsu
Appl. Phys. Express 10, 102401 (4 pages) (2017).
(DOI: 10.7567/APEX.10.102401)
Free Carrier Radiative Recombination and Photon Recycling in Lead Halide Perovskite Solar Cell Materials
Y. Yamada, T. Yamada, and Y. Kanemitsu
Bull. Chem. Soc. Jpn. 90, 1129-1140 (2017).
(DOI: 10.1246/bcsj.20170208)
High-Performance CsPb1-xSnxBr3 Perovskite Quantum Dots for Light-Emitting Diodes
H.-C. Wang, W. Wang, A.-C. Tang, H.-Y. Tsai, Z. Bao, T. Ihara, N. Yarita, H. Tahara, Y. Kanemitsu, S. Chen, and R.-S. Liu
Angew. Chem. Int. Ed. 56, 13650-13654 (2017).
(DOI: 10.1002/ange.201706860)
Photophysics of Metal Halide Perovskites: Single Crystals, Nanocrystals, Thin Films, and Photonic Devices
Y. Kanemitsu
2017 24th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD), 34-37 (2017).
Evaluation of subcell power conversion efficiencies of radiation-damaged triple-junction solar cells using photoluminescence decays
D. M. Tex, T. Ihara, T. Nakamura, M. Imaizumi, T. Ohshima, and Y. Kanemitsu
Prog Photovolt Res Appl. 25, 1005-1014 (2017).
(DOI: 10.1002/pip.2912)
Enhanced radiative recombination rate for electron-hole droplets in a silicon photonic crystal nanocavity
T. Ihara, Y. Takanishi, S. Noda, and Y. Kanemitsu
Phys. Rev. B 96, 035303 (7 pages) (2017).
(DOI: 10.1103/PhysRevB.96.035303)
Photocarrier Recombination and Injection Dynamics in Long-Term Stable Lead-Free CH3NH3SnI3 Perovskite Thin Films and Solar Cells
T. Handa, T. Yamada, H. Kubota, S. Ise, Y. Miyamoto, and Y. Kanemitsu
J. Phys. Chem. C 121, 16158-16165 (2017).
(DOI: 10.1021/acs.jpcc.7b06199)
Simultaneously measured photoluminescence lifetime and quantum yield of two-photon cascade emission on single CdSe/ZnS nanocrystals
N. Hiroshige, T. Ihara, and Y. Kanemitsu
Phys. Rev. B 95, 245307 (9 pages) (2017).
(DOI: 10.1103/PhysRevB.95.245307)
Direct evaluation of influence of electron damage on the subcell performance in triple-junction solar cells using photoluminescence decays
D. M. Tex, T. Nakamura, M. Imaizumi, T. Ohshima, and Y. Kanemitsu
Sci. Rep. 7, 1985 (8 pages) (2017).
(DOI: 10.1038/s41598-017-02141-0)
Coulomb-Enhanced Radiative Recombination of Biexcitons in Single Giant-Shell CdSe/CdS Core/Shell Nanocrystals
N. Hiroshige, T. Ihara, M. Saruyama, T. Teranishi, and Y. Kanemitsu
J. Phys. Chem. Lett. 8, 1961-1966 (2017).
(DOI: 10.1021/acs.jpclett.7b00547)
Luminescence spectroscopy of lead-halide perovskites: materials properties and application as photovoltaic devices
Y. Kanemitsu
J. Mater. Chem. C 5, 3427-3437 (2017).
(DOI: 10.1039/c7tc00669a) (2017 Journal of Materials Chemistry C HOT Papers)
A Stable, Soluble, and Crystalline Supramolecular System with a Triplet Ground State
T. Futagoishi, T. Aharen, T. Kato, T. Ihara, T. Tada, M. Murata, A. Wakamiya, H. Kageyama, Y. Kanemitsu, and Y. Murata
Angew. Chem. Int. Ed. 56, 4261-4265 (2017).
(DOI: 10.1002/anie.201701212)
Dynamics of Charged Excitons and Biexcitons in CsPbBr3 Perovskite Nanocrystals Revealed by Femtosecond Transient-Absorption and Single-Dot Luminescence Spectroscopy
N. Yarita, H. Tahara, T. Ihara, T. Kawawaki, R. Sato, M. Saruyama, T. Teranishi, and Y. Kanemitsu
J. Phys. Chem. Lett. 8, 1413-1418 (2017).
(DOI: 10.1021/acs.jpclett.7b00326)
Sensitive monitoring of photocarrier densities in the active layer of a photovoltaic device with time-resolved terahertz reflection spectroscopy
G. Yamashita, E. Matsubara, M. Nagai, C. Kim, H. Akiyama, Y. Kanemitsu, and M. Ashida
Appl. Phys. Lett. 110, 071108 (5 pages) (2017).
(DOI: 10.1063/1.4975631)
Charge Injection Mechanism at Heterointerfaces in CH3NH3PbI3 Perovskite Solar Cells Revealed by Simultaneous Time-Resolved Photoluminescence and Photocurrent Measurements
T. Handa, D. M. Tex, A. Shimazaki, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 8, 954-960 (2017).
(DOI: 10.1021/acs.jpclett.6b02847)
Analyzing the Electrical Performance of a Solar Cell with Time-Resolved Photoluminescence: Methodology for Fast Optical Screening
D. M. Tex, M. Imaizumi, and Y. Kanemitsu
Phys. Rev. Applied 7, 014019 (8 pages) (2017).
(DOI: 10.1103/PhysRevApplied.7.014019)
Review–Photophysics of Trions in Single-Walled Carbon Nanotubes
T. Nishihara, M. Okano, Y. Yamada, and Y. Kanemitsu
ECS J. Solid State Sci. Technol. 6, M3062-M3064 (2017).
(DOI: 10.1149/2.0091706jss)
Photon Emission and Reabsorption Processes in CH3NH3PbBr3 Single Crystals Revealed by Time-Resolved Two-Photon-Excitation Photoluminescence Microscopy
T. Yamada, Y. Yamada, Y. Nakaike, A. Wakamiya, and Y. Kanemitsu
Phys. Rev. Applied 7, 014001 (8 pages) (2017).
(DOI: 10.1103/PhysRevApplied.7.014001)
2016
Internal luminescence efficiencies in InGaP/GaAs/Ge triple-junction solar cells evaluated from photoluminescence through optical coupling between subcells
D. M. Tex, M. Imaizumi, H. Akiyama, and Y. Kanemitsu
Sci. Rep. 6, 38297 (8 pages) (2016).
(DOI: 10.1038/srep38297)
Accuracy evaluations for standardization of multi-junction solar-cell characterizations via absolute electroluminescence
M. Yoshita, L. Zhu, H. Kubota, T. Nakamura, M. Imaizumi, Y. Kanemitsu, and H. Akiyama
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 3571-3573 (2016).
(DOI: 10.1109/PVSC.2016.7750337)
Current leakage and fill factor in multi-junction solar cells linked via absolute electroluminescence characterization
L. Zhu, M. Yoshita, T. Nakamura, T. Mochizuki, C. Kim, M. Imaizumi, Y. Kanemitsu, and H. Akiyama
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1239-1243 (2016).
(DOI: 10.1109/PVSC.2016.7749812)
Universal behavior of time-resolved photoluminescence decays in III-V solar cells: Comparison of subcell current generation dynamics
D. M. Tex, T. Nakamura, M. Imaizumi, and Y. Kanemitsu
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1235-1238 (2016).
(DOI: 10.1109/PVSC.2016.7749811)
Impact of alkali doping on carrier transport in Cu2ZnSn(S,Se)4 thin films for solar cell applications
L. Q. Phuong, J. K. Katahara, G. Yamashita, M. Nagai, M. Ashida, H. W. Hillhouse, and Y. Kanemitsu
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 0027-0030 (2016).
(DOI: 10.1109/PVSC.2016.7749402)
Free Excitons and Exciton-Phonon Coupling in CH3NH3PbI3 Single Crystals Revealed by Photocurrent and Photoluminescence Measurements at Low Temperatures
L. Q. Phuong, Y. Nakaike, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 7, 4905-4910 (2016).
(DOI: 10.1021/acs.jpclett.6b02432)
Intrinsic Trade-off between Up-Conversion and Trapping Rates in InAs Quantum Dots for Intermediate-Band Solar Cells
D. M. Tex, K. Akahane, and Y. Kanemitsu
Phys. Rev. Applied 6, 044003 (10 pages) (2016).
(DOI: 10.1103/PhysRevApplied.6.044003)
Spectral Diffusion of Emissions of Excitons and Trions in Single CdSe/ZnS Nanocrystals: Charge Fluctuations in and around Nanocrystals
H. Ibuki, T. Ihara, and Y. Kanemitsu
J. Phys. Chem. C 120, 23772-23779 (2016).
(DOI: 10.1021/acs.jpcc.6b06220)
Charge Injection at the Heterointerface in Perovskite CH3NH3PbI3 Solar Cells Studied by Simultaneous Microscopic Photoluminescence and Photocurrent Imaging Spectroscopy
D. Yamashita, T. Handa, T. Ihara, H. Tahara, A. Shimazaki, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 7, 3186-3191 (2016).
(DOI: 10.1021/acs.jpclett.6b01231)
Free Carriers Versus Excitons in CH3NH3PbI3 Perovskite Thin Films at Low Temperatures: Charge Transfer From the Orthorhombic Phase to the Tetragonal Phase
L. Q. Phuong, Y. Yamada, M. Nagai, N. Maruyama, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 7, 2316-2321 (2016).
(DOI: 10.1021/acs.jpclett.6b00781)
Interfacial Charge-Carrier Trapping in CH3NH3PbI3-Based Heterolayered Structures Revealed by Time-Resolved Photoluminescence Spectroscopy
Y. Yamada, T. Yamada, A. Shimazaki, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 7, 1972-1977 (2016).
(DOI: 10.1021/acs.jpclett.6b00653)
Light-stimulated carrier dynamics of CuInS2/CdS heterotetrapod nanocrystals
M. Sakamoto, K. Inoue, M. Okano, M. Saruyama, S. Kim, Y-G. So, K. Kimoto, Y. Kanemitsu, and T. Teranishi
Nanoscale 8, 9517-9520 (2016).
(DOI: 10.1039/c6nr01097k)
Optical characterization of voltage-accelerated degradation in CH3NH3PbI3 perovskite solar cells
T. Handa, D. M. Tex, A. Shimazaki, T. Aharen, A. Wakamiya, and Y. Kanemitsu
Opt. Express 24, A917-A924 (2016).
(DOI: 10.1364/OE.24.00A917)
Characterizations of radiation damages in multi-junction solar cells focused on subcell internal luminescence quantum yields via absolute electroluminescence measurements
L. Zhu, M. Yoshita, S. Chen, T. Nakamura, T. Mochizuki, C. Kim, M. Imaizumi, Y. Kanemitsu, and H. Akiyama
IEEE J. Photovolt. 6, 777-782 (2016).
(DOI: 10.1109/JPHOTOV.2016.2540247)
Conversion efficiency limits and bandgap designs for multi-junction solar cells with internal radiative efficiencies below unity
L. Zhu, T. Mochizuki, M. Yoshita, S. Chen, C. Kim, H. Akiyama, and Y. Kanemitsu
Opt. Express 24, A740-A751 (2016).
(DOI: 10.1364/OE.24.00A740)
Characterization and modeling of radiation damages via internal radiative efficiency in multi-junction solar cells
L. Zhu, M. Yoshita, T. Nakamura, M. Imaizumi, C. Kim, T. Mochizuki, S. Chen, Y. Kanemitsu, and H. Akiyama
Proc. SPIE 9743, 97430U (7 pages) (2016).
(DOI: 10.1117/12.2212827)
Calibration standards and measurement accuracy of absolute electroluminescence and internal properties in multi-junction and arrayed solar cells
M. Yoshita, L. Zhu, C. Kim, T. Mochizuki, T. Nakamura, M. Imaizumi, S. Chen, H. Kubota, Y. Kanemitsu, and H. Akiyama
Proc. SPIE 9743, 97430D (6 pages) (2016).
(DOI: 10.1117/12.2211726)
Photoluminescence blinking and spectral diffusion of single CdSe/ZnS nanocrystals: charge fluctuation effects
H. Ibuki, T. Ihara, and Y. Kanemitsu
Proc. SPIE 9758, 97580R (8 pages) (2016).
(DOI: 10.1117/12.2210817)
Carrier injection and recombination processes in perovskite CH3NH3PbI3 solar cells studied by electroluminescence spectroscopy
T. Handa, M. Okano, D. M. Tex, A. Shimazaki, T. Aharen, A. Wakamiya, and Y. Kanemitsu
Proc. SPIE 9745, 97451I (7 pages) (2016).
(DOI: 10.1117/12.2212052)
Experimental Evidence of Localized Shallow States in Orthorhombic Phase of CH3NH3PbI3 Perovskite Thin Films Revealed by Photocurrent Beat Spectroscopy
H. Tahara, M. Endo, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. C 120, 5347-5352 (2016).
(DOI: 10.1021/acs.jpcc.6b01283)
Observation of localized states in bulk GaAs using ultrafast photocurrent beat spectroscopy
H. Tahara and Y. Kanemitsu
Appl. Phys. Express 9, 032403 (7 pages) (2016).
(DOI: 10.7567/APEX.9.032403)
Solar-cell radiance standard for absolute electroluminescence measurements and open-circuit voltage mapping of silicon solar modules
T. Mochizuki, C. Kim, M. Yoshita, J. Mitchell, Z. Lin, S. Chen, H. Takato, Y. Kanemitsu, and H. Akiyama
J. Appl. Phys. 119, 034501 (8 pages) (2016).
(DOI: 10.1063/1.4940159)
Fast Free-Carrier Diffusion in CH3NH3PbBr3 Single Crystals Revealed by Time-Resolved One- and Two-Photon Excitation Photoluminescence Spectroscopy
T. Yamada, Y. Yamada, H. Nishimura, Y. Nakaike, A. Wakamiya, Y. Murata and Y. Kanemitsu
Adv. Electron. Mater. 2, 1500290 (5 pages) (2016).
(DOI: 10.1002/aelm.201500290)
2015
Dynamics of the Lowest-Energy Excitons in Single-Walled Carbon Nanotubes under Resonant and Nonresonant Optical Excitation
T. Nishihara, Y. Yamada, M. Okano and Y. Kanemitsu
J. Phys. Chem. C 119, 28654-28659 (2015).
(DOI: 10.1021/acs.jpcc.5b09485)
Charge separation in subcells of triple-junction solar cells revealed by time-resolved photoluminescence spectroscopy
D. M. Tex, M. Imaizumi and Y. Kanemitsu
Opt. Express 23, A1687-A1692 (2015).
(DOI: 10.1364/OE.23.0A1687)
Absorption cross-section spectrum of single CdSe/ZnS nanocrystals revealed through photoluminescence excitation spectroscopy
T. Ihara and Y. Kanemitsu
Phys. Rev. B 92, 155311 (5 pages) (2015).
(DOI: 10.1103/PhysRevB.92.155311)
Optical and transport properties of transparent conducting La-doped SrSnO3 thin films
E. Baba, D. Kan, Y. Yamada, M. Haruta, H. Kurata, Y. Kanemitsu and Y. Shimakawa
J. Phys. D: Appl. Phys. 48, 455106 (5 pages) (2015).
(DOI: 10.1088/0022-3727/48/45/455106)
Degradation mechanism of perovskite CH3NH3PbI3 diode devices studied by electroluminescence and photoluminescence imaging spectroscopy
M. Okano, M. Endo, A. Wakamiya, M. Yoshita, H. Akiyama, and Y. Kanemitsu
Appl. Phys. Express 8, 102302 (4 pages) (2015).
(DOI: 10.7567/APEX.8.102302)
Free-carrier dynamics and band tails in Cu2ZnSn(SxSe1-x)4: Evaluation of factors determining solar cell efficiency
L. Q. Phuong, M. Okano, G. Yamashita, M. Nagai, M. Ashida, A. Nagaoka,K. Yoshino, and Y. Kanemitsu
Phys. Rev. B 92, 115204 (7 pages) (2015).
(DOI: 10.1103/PhysRevB.92.115204)
Photoluminescence of monovalent indium centres in phosphate glass
H. Masai, Y. Yamada, S. Okumura, T. Yanagida, Y. Fujimoto, Y. Kanemitsu, and T. Ina
Sci. Rep. 5, 13646 (10 pages) (2015).
(DOI: 10.1038/srep13646)
Dynamic Optical Properties of CH3NH3PbI3 Single Crystals as Revealed by One- and Two-photon Excited Photoluminescence Measurements
Y. Yamada, T. Yamada, L. Q. Phuong, N. Maruyama, H. Nishimura, A. Wakamiya, Y. Murata, and Y. Kanemitsu
J. Am. Chem. Soc. 137, 10456-10459 (2015).
(DOI: 10.1021/jacs.5b04503)
Femtosecond upconverted photocurrent spectroscopy of InAs quantum nanostructures
Y. Yamada, D. M. Tex, I. Kamiya, and Y. Kanemitsu
Appl. Phys. Lett. 107, 013905 (5 pages) (2015).
(DOI: 10.1063/1.4926569)
Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors
H. Masai, H. Miyata, Y. Yamada, S. Okumura, T. Yanagida and Y. Kanemitsu
Sci. Rep. 5, 11224 (12 pages) (2015).
(DOI: 10.1038/srep11224)
Photocarrier dynamics in undoped and Na-doped Cu2ZnSnS4 single crystals revealed by ultrafast time-resolved terahertz spectroscopy
L. Q. Phuong, M. Okano, G. Yamashita, M. Nagai, M. Ashida, A. Nagaoka, K. Yoshino, and Y. Kanemitsu
Appl. Phys. Express 8, 062303 (4 pages) (2015).
(DOI: 10.7567/APEX.8.062303)
Photoinduced Carrier Dynamics of Nearly Stoichiometric Oleylamine-Protected Copper Indium Sulfide Nanoparticles and Nanodisks
M. Sakamoto, L. Chen, M. Okano, D. M. Tex, Y. Kanemitsu, and T. Teranishi
J. Phys. Chem. C 119, 11100-11105 (2015).
(DOI: 10.1021/jp511864p)
Individual identification of free hole and electron dynamics in CuIn1-xGaxSe2 thin films by simultaneous monitoring of two optical transitions
M. Okano, H. Hagiya, T. Sakurai, K. Akimoto, H. Shibata, S. Niki, and Y. Kanemitsu
Appl. Phys. Lett. 106, 181903 (4 pages) (2015).
(DOI: 10.1063/1.4919902)
Photocarrier dynamics in CIGS, CZTS, and related materials revealed by ultrafast optical spectroscopy
M. Okano, L. Q. Phuong, and Y. Kanemitsu
Phys. Status Solidi B 252, 1219-1224 (2015).
(DOI: 10.1002/pssb.201400260)
Fast Dissociation and Reduced Auger Recombination of Multiple Excitons in Closely Packed PbS Nanocrystal Thin Films
T. Nishihara, H. Tahara, M. Okano, M. Ono, and Y. Kanemitsu
J. Phys. Chem. Lett. 6, 1327-1332 (2015).
(DOI: 10.1021/acs.jpclett.5b00293)
Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields
H. Akiyama, L. Zhu, M. Yoshita, C. Kim, S. Chen, T. Mochizuki, and Y. Kanemitsu
Proc. SPIE 9358, 93580B (8 pages) (2015).
(DOI: 10.1117/12.2175825)
Spontaneous Defect Annihilation in CH3NH3PbI3 Thin Films at Room Temperature Revealed by Time-Resolved Photoluminescence Spectroscopy
Y. Yamada, M. Endo, A. Wakamiya, and Y. Kanemitsu
J. Phys. Chem. Lett. 6, 482-486 (2015).
(DOI: 10.1021/jz5026596)
Thorough subcells diagnosis in a multi-junction solar cell via absolute electroluminescence-efficiency measurements
S. Chen, L. Zhu, M. Yoshita, T. Mochizuki, C. Kim, H. Akiyama, M. Imaizumi, and Y. Kanemitsu
Sci. Rep. 5, 7836 (6 pages) (2015).
(DOI: 10.1038/srep07836)
Time-resolved photoluminescence measurements for determining voltage-dependent charge-separation efficiencies of subcells in triple-junction solar cells
D. M. Tex, T. Ihara, H. Akiyama, M. Imaizumi, and Y. Kanemitsu
Appl. Phys. Lett. 106, 013905 (4 pages) (2015).
(DOI: 10.1063/1.4905474)
Photoelectronic Responses in Solution-Processed Perovskite CH3NH3PbI3 Solar Cells Studied by Photoluminescence and Photoabsorption Spectroscopy
Y. Yamada, T. Nakamura, M. Endo, A. Wakamiya, and Y. Kanemitsu,
IEEE J. Photovolt. 5, 401-405 (2015).
(DOI: 10.1109/JPHOTOV.2014.2364115)
2014
Dynamical coherent control of photocurrent in bulk GaAs at room temperature
H. Tahara and Y. Kanemitsu
Phys. Rev. B 90, 245203 (5 pages) (2014).
(DOI: 10.1103/PhysRevB.90.245203)
Intrinsic carrier multiplication efficiency in bulk Si crystals evaluated by optical-pump/terahertz-probe spectroscopy
G. Yamashita, E. Matsubara, M. Nagai, Y. Kanemitsu, and M. Ashida
Appl. Phys. Lett. 105, 231118 (4 pages) (2014).
(DOI: 10.1063/1.4903859)
Ultrafast free-carrier dynamics in Cu2ZnSnS4 single crystals studied using femtosecond time-resolved optical spectroscopy
L. Q. Phuong, M. Okano, Y. Yamada, G. Yamashita, T. Morimoto, M. Nagai, M. Ashida, A. Nagaoka, K. Yoshino, and Y. Kanemitsu
Appl. Phys. Lett. 105, 231902 (4 pages) (2014).
(DOI: 10.1063/1.4903802)
Spectral diffusion of neutral and charged exciton transitions in single CdSe/ZnS nanocrystals due to quantum-confined Stark effect
T. Ihara and Y. Kanemitsu
Phys. Rev. B 90, 195302 (5 pages) (2014).
(DOI: 10.1103/PhysRevB.90.195302)
Assessment of Hot-Carrier Effects on Charge Separation in Type-II CdS/CdTe Heterostructured Nanorods
M. Okano, M. Sakamoto, T. Teranishi, and Y. Kanemitsu
J. Phys. Chem. Lett. 5, 2951-2956 (2014).
(DOI: 10.1021/jz501564q)
Photocarrier Recombination Dynamics in Perovskite CH3NH3PbI3 for Solar Cell Applications
Y. Yamada, T. Nakamura, M. Endo, A. Wakamiya, and Y. Kanemitsu
J. Am. Chem. Soc. 136, 11610-11613 (2014).
(DOI: 10.1021/ja506624n) (Spotlights on Recent JACS Publications)
Delocalized and localized charged excitons in single CdSe/CdS dot-in-rods revealed by polarized photoluminescence blinking
T. Ihara, R. Sato, T. Teranishi, and Y. Kanemitsu
Phys. Rev. B 90, 035309 (5 pages) (2014).
(DOI: 10.1103/PhysRevB.90.035309)
Investigation on Photo-Induced Charge Separation in CdS/CdTe Nanopencils
M. Sakamoto, K. Inoue, M. Saruyama, Y.-G. So, K. Kimoto, M. Okano, Y. Kanemitsu, and T. Teranishi
Chem. Sci. 5, 3831-3835 (2014).
(DOI: 10.1039/C4SC00635F)
Slow intraband relaxation and localization of photogenerated carriers in CuIn1-xGaxSe2 thin films: Evidence for the existence of long-lived high-energy carriers
M. Okano, Y. Takabayashi, T. Sakurai, K. Akimoto, H. Shibata, S. Niki, and Y. Kanemitsu
Phys. Rev. B 89, 195203 (6 pages) (2014).
(DOI: 10.1103/PhysRevB.89.195203)
Impact of surface ligands on the photocurrent enhancement due to multiple exciton generation in close-packed nanocrystal thin films
M. Ono, T. Nishihara, T. Ihara, M. Kikuchi, A. Tanaka, M. Suzuki, and Y. Kanemitsu
Chem. Sci. 5, 2696-2701 (2014).
(DOI: 10.1039/C4SC00436A)
Spatial density profile of electrons near the LaAlO3/SrTiO3 heterointerface revealed by time-resolved photoluminescence spectroscopy
Y. Yamada, H. K. Sato, Y. Hikita, H. Y. Hwang, and Y. Kanemitsu
Appl. Phys. Lett. 104, 151907 (4 pages) (2014).
(DOI: 10.1063/1.4872171)
Temperature and light-intensity dependence of upconverted photocurrent generation in shallow InAs quantum structures
D. M. Tex, T. Ihara, I. Kamiya, and Y. Kanemitsu
Jpn. J. Appl. Phys. 53, 05FV01 (4 pages) (2014).
(DOI: 10.7567/JJAP.53.05FV01)
Exciton recombination dynamics in nanoring cycloparaphenylenes
T. Nishihara, Y. Segawa, K. Itami, and Y. Kanemitsu
Chem. Sci. 5, 2293-2296 (2014).
(DOI: 10.1039/C3SC53462F)
Photocarruer recombination and localization dynamics of LaAlO3/SrTiO3 heterostructures
Y. Yamada, H. K. Sato, Y. Hikita, H. Y. Hwang, and Y. Kanemitsu
Proc. SPIE 8987, 898710 (7 pages) (2014).
(DOI: 10.1117/12.2038785)
Chemical doping-induced changes in optical properties of single-walled carbon nanotubes
M. Okano, T. Nishihara, Y. Yamada, and Y. Kanemitsu
Jpn. J. Appl. Phys. 53, 05FD02 (4 pages) (2014).
(DOI: 10.7567/JJAP.53.05FD02)
Microscopic photoluminescence and photocurrent imaging spectroscopy of InAs nanostructures: Identification of photocarrier generation sites for intermediate-band solar cells
D. M. Tex, T. Ihara, I. Kamiya, and Y. Kanemitsu
Phys. Rev. B 89, 125301 (8 pages) (2014).
(DOI: 10.1103/PhysRevB.89.125301)
Temperature-dependent photocarrier recombination dynamics in Cu2ZnSnS4 single crystals
L. Q. Phuong, M. Okano, Y. Yamada, A. Nagaoka, K. Yoshino, and Y. Kanemitsu
Appl. Phys. Lett. 104, 081907 (4 pages) (2014).
(DOI: 10.1063/1.4866666)
Control of hot-carrier relaxation for realizing ideal quantum-dot intermediate-band solar cells
D. M. Tex, I. Kamiya, and Y. Kanemitsu
Sci. Rep. 4, 4125 (6 pages) (2014).
(DOI: 10.1038/srep04125)
Near-band-edge optical responses of solution-processed organic-inorganic hybrid perovskite CH3NH3PbI3 on mesoporous TiO2 electrodes
Y. Yamada, T. Nakamura, M. Endo, A. Wakamiya, and Y. Kanemitsu
Appl. Phys. Express 7, 032302 (4 pages) (2014).
(DOI: 10.7567/APEX.7.032302)
Quantized exciton-exciton recombination in undoped and hole-doped single-walled carbon nanotubes
T. Nishihara, Y. Yamada, M. Okano, and Y. Kanemitsu
Jpn. J. Appl. Phys. 53, 02BD10 (5 pages) (2014).
(DOI: 10.7567/JJAP.53.02BD10)
Impact of sub-cell internal luminescence yields on energy conversion efficiencies of tandem solar cells: A design principle
L. Zhu, C. Kim, M. Yoshita, S. Chen, S. Sato, T. Mochizuki, H. Akiyama, and Y. Kanemitsu
Appl. Phys. Lett. 104, 031118 (5 pages) (2014).
(DOI: 10.1063/1.4861464)
Measurement of transient photoabsorption and photocurrent of BiFeO3 thin films: Evidence for long-lived trapped photocarriers
Y. Yamada, T. Nakamura, S. Yasui, H. Funakubo, and Y. Kanemitsu
Phys. Rev. B 89, 035133 (5 pages) (2014).
(DOI: 10.1103/PhysRevB.89.035133)
Band-to-band photoluminescence as a probe of electron carriers in Nb-doped SrTiO3 epitaxial thin films
D. Kan, T. Shimizu, Y. Yamada, R. Aso, H. Kurata, Y. Kanemitsu, and Y. Shimakawa
Appl. Phys. Express 7, 015503 (4 pages) (2014).
(DOI: 10.7567/APEX.7.015503)
2013
Narrow Energy Gap between Triplet and Singlet Excited States of Sn2+ in Borate Glass
H. Masai, Y. Yamada, Y. Suzuki, K. Teramura, Y. Kanemitsu, and T. Yoko
Sci. Rep. 3, 3541 (7 pages) (2013).
(DOI: 10.1038/srep03541)
Photocarrier localization and recombination dynamics in Cu2ZnSnS4 single crystals
L. Q. Phuong, M. Okano, Y. Yamada, A. Nagaoka, K. Yoshino, and Y. Kanemitsu
Appl. Phys. Lett. 103, 191902 (4 pages) (2013).
(DOI: 10.1063/1.4829063)
Biexciton state causes photoluminescence fluctuations in CdSe/ZnS core/shell quantum dots at high photoexcitation densities
N. Yoshikawa, H. Hirori, H. Watanabe, T. Aoki, T. Ihara, R. Kusuda, C. Wolpert, T. K. Fujiwara, A. Kusumi, Y. Kanemitsu, and K. Tanaka
Phys. Rev. B 88, 155440 (5 pages) (2013).
(DOI: 10.1103/PhysRevB.88.155440)
Photoluminescence of a Te4+ center in zinc borate glass
H. Masai, Y. Yamada, S. Okumura, Y. Kanemitsu, and T. Yoko
Opt. Lett. 38, 3780-3783 (2013).
(DOI: 10.1364/OL.38.003780)
Measurement of the Femtosecond Optical Absorption of LaAlO3/SrTiO3 Heterostructures: Evidence for an Extremely Slow Electron Relaxation at the Interface
Y. Yamada, H. K. Sato, Y. Hikita, H. Y. Hwang, and Y. Kanemitsu
Phys. Rev. Lett. 111, 047403 (5 pages) (2013).
(DOI: 10.1103/PhysRevLett.111.047403)
Trion Formation and Recombination Dynamics in Hole-Doped Single-Walled Carbon Nanotubes
T. Nishihara, Y. Yamada, M. Okano, and Y. Kanemitsu
Appl. Phys. Lett. 103, 023101 (4 pages) (2013).
(DOI: 10.1063/1.4813014)
Efficient upconverted photocurrent through an Auger process in disklike InAs quantum structures for intermediate-band solar cells
D. M. Tex, I. Kamiya, and Y. Kanemitsu
Phys. Rev. B 87, 245305 (7 pages) (2013).
(DOI: 10.1103/PhysRevB.87.245305)
Observation of excited-state excitons and band-gap renormalization in hole-doped carbon nanotubes using photoluminescence excitation spectroscopy
Y. Kimoto, M. Okano, and Y. Kanemitsu
Phys. Rev. B 87, 195416 (5 pages) (2013).
(DOI: 10.1103/PhysRevB.87.195416)
Determination of Phase Diagram of Electron-Hole Systems in 4H-SiC
D. Hirano, T. Kimoto, and Y. Kanemitsu
J. Phys. Soc. Jpn. 82, 063703 (4 pages) (2013).
(DOI: 10.7566/JPSJ.82.063703)
Dynamics of excitons and trions in semiconducting carbon nanotubes
M. Okano, T. Nishihara, Y. Yamada, Y. Kanemitsu
Proc. SPIE 8623, 86231F (8 pages) (2013).
(DOI: 10.1117/12.2003263)
Multiple Exciton Generation and Recombination in Carbon Nanotubes and Nanocrystals
Y. Kanemitsu
Acc. Chem. Res. 46, 1358-1366 (2013).
(DOI: 10.1021/ar300269z) (Review)
Photoluminescence spectra of perovskite oxide semiconductors
Y. Yamada and Y. Kanemitsu
J. Lumin. 133, 30-34 (2013).
(DOI: 10.1016/j.jlumin.2011.12.037)
2012
Blue 6-ps short-pulse generation in gain-switched InGaN vertical-cavity surface-emitting lasers via impulsive optical pumping
S. Chen, M. Okano, B. Zhang, M. Yoshita, H. Akiyama, and Y. Kanemitsu
Appl. Phys. Lett. 101, 191108 (3 pages) (2012).
(DOI: 10.1063/1.4766290)
Breakdown of the k-conservation rule in quantized Auger recombination in Si1-xGex nanocrystals
K. Ueda, T. Tayagaki, M. Fukuda, M. Fujii, and Y. Kanemitsu
Phys. Rev. B. 86, 155316 (5 pages) (2012).
(DOI: 10.1103/PhysRevB.86.155316)
Influence of thermal annealing on the carrier extraction in Ge/Si quantum dot solar cells
T. Tayagaki, N. Usami, and Y. Kanemitsu
Jpn. J. Appl. Phys. 51, 10NE24 (4 pages) (2012).
(DOI: 10.1143/JJAP.51.10NE24)
Excited States in Cycloparaphenylenes: Dependence of Optical Properties on Ring Length
T. Nishihara, Y. Segawa, K. Itami, and Y. Kanemitsu
J. Phys. Chem. Lett. 3, 3125-3128 (2012).
(DOI: 10.1021/jz3014826)
Determination of electron and hole lifetimes of rutile and anatase TiO2 single crystals
Y. Yamada and Y. Kanemitsu
Appl. Phys. Lett. 101, 133907 (4 pages) (2012).
(DOI: 10.1063/1.4754831)
Enhanced carrier extraction from Ge quantum dots in Si solar cells under strong photoexcitation
T. Tayagaki, N. Usami, W. Pan, Y. Hoshi, K. Ooi, and Y. Kanemitsu
Appl. Phys. Lett. 101, 133905 (4 pages) (2012).
(DOI: 10.1063/1.4756895)
High-Density Carrier Dynamics in Ge/Si Quantum Dots studied by Time-resolved Photoluminescence Spectroscop
K. Ueda, T. Tayagaki, S. Fukatsu and Y. Kanemitsu
Journal of Non-Crystalline Solids. 358, 2122-2125 (2012).
(DOI: 10.1016/j.jnoncrysol.2011.12.020)
Dynamics of exciton-hole recombination in hole-doped single-walled carbon nanotubes
T. Nishihara, Y. Yamada, and Y. Kanemitsu
Phys. Rev. B 86, 075449 (5 pages) (2012).
(DOI: 10.1103/PhysRevB.86.075449)
Observation of high Rydberg states of one-dimensional excitons in GaAs quantum wires by magnetophotoluminescence excitation spectroscopy
M. Okano, Y. Kanemitsu, S. Chen, T. Mochizuki, M. Yoshita, H. Akiyama, L. N. Pfeiffer, and K. W. West
Phys. Rev. B 86, 085312 (5 pages) (2012).
(DOI: 10.1103/PhysRevB.86.085312)
Recombination dynamics of high-density photocarriers in type-II Ge/Si quantum dots
T. Tayagaki, K. Ueda, S. Fukatsu, and Y. Kanemitsu
J. Phys. Soc. Jpn. 81, 064712 (6 pages) (2012).
(DOI: 10.1143/JPSJ.81.064712)
Band-edge luminescence from SrTiO3: No polaron effect
Y. Yamada and Y. Kanemitsu
Thin Solid films. 520, 3843-3846 (2012).
(DOI: 10.1016/j.tsf.2011.06.087)
Near-field photoluminescence spectroscopy of CdTe/Cd0.75Mn0.25Te tilted superlattices
Y. Harada, T. Kita, K. Matsuda, Y. Kanemitsu, H. Mariette
Phys. Status Solidi C 9, 262-265 (2012).
(DOI: 10.1002/pssc.201100278)
2011
Spontaneous Formation of Wurtzite-CdS/Zinc Blende-CdTe Heterodimers through a Partial Anion Exchange Reaction
M. Saruyama, Y. G. So, K. Kimoto, S. Taguchi, Y. Kanemitsu, and T. Teranishi
J. Am. Chem. Soc.(communication) 133, 17598-17601 (2011).
(DOI: 10.1021/ja2078224)
Raman study on the interlayer interactions and the band structure of bilayer graphene synthesized by alcohol chemical vapor deposition
M. Okano, R. Matsunaga, K. Matsuda, S. Masubuchi, T. Machida, and Y. Kanemitsu
Appl. Phys. Lett. 99, 151916 (3 pages) (2011).
(DOI: 10.1063/1.3651325)
Blue photoluminescence and Auger recombination of carriers in SrTiO3 nanoparticles
Y. Yamada, K. Suzuki, and Y. Kanemitsu
Appl. Phys. Lett. 99, 093101 (3 pages) (2011).
(DOI: 10.1063/1.3626594)
Excitons in semiconducting carbon nanotubes: Diameter-dependent photoluminescence spectra
Y. Kanemitsu
Phys. Chem. Chem. Phys. 13, 14879-14888 (2011).
(DOI: 10.1039/c1cp21235d) (Invited Perspective)
Blue light emission from strongly photoexcited and electron-doped SrTiO3
Y. Yamada and Y. Kanemitsu
J. Appl. Phys. 109, 102410 (4 pages) (2011).
(DOI: 10.1063/1.3577613)
Quantized Auger recombination of biexcitons in CdSe nanorods studied by time-resolved photoluminescence and transient-absorption spectroscopy
S. Taguchi, M. Saruyama, T. Teranishi, and Y. Kanemitsu
Phys. Rev. B 83, 155324 (7 pages) (2011).
(DOI: 10.1103/PhysRevB.83.155324)
Energy Transfer between Excitons and Plasmons in Semiconductor-Metal Hybrid Nanostructures
Y. Kanemitsu and K. Matsuda
J. Lumin. 131, 510-514 (2011).
(DOI: 10.1016/j.jlumin.2010.09.012) (Invited Review)
Auger recombination in Si1-xGex/Si quantum wells under high-density photoexcitation
T. Tayagaki, S. Fukatsu, and Y. Kanemitsu
Phys. Status Solidi C 8, 1049-1054 (2011).
(DOI: 10.1002/pssc.201000382) (Invited Review)
Observation of charged excitons in hole-doped carbon nanotubes using photoluminescence and absorption spectroscopy
R. Matsunaga, K. Matsuda, and Y. Kanemitsu
Phys. Rev. Lett. 106, 037404 (4 pages) (2011).
(DOI: 10.1103/PhysRevLett.106.037404) (Featured in Physics) (Editors' Suggestion) (Physics Viewpoint)
Light Emission from SrTiO3
Y. Kanemitsu and Y. Yamada
Phys. Status Solidi B 248, 416-421 (2011).
(DOI: 10.1002/pssb.201000643) (Invited Review)
2010
Blue photoluminescence of highly photoexcited rutile TiO2: Nearly degenerate conduction-band effects
Y. Yamada and Y. Kanemitsu
Phys. Rev. B 82, 113103 (4 pages) (2010).
(DOI: 10.1103/PhysRevB.82.113103)
Band-to-band photoluminescence in SrTiO3
Y. Yamada and Y. Kanemitsu
Phys. Rev. B 82, 121103(R) (4 pages) (2010).
(DOI: 10.1103/PhysRevB.82.121103)
Ultrafast decay of photoluminescence from high-density excitons in AlxGa1-xN mixed crystals: Diffusive propagation of exciton-polaritons
D. Hirano, T. Tayagaki, Y. Yamada, and Y. Kanemitsu
Phys. Rev. B 82, 113202 (4 pages) (2010).
(DOI: 10.1103/PhysRevB.82.113202)
Photoluminescence Spectra and Dynamics of Al3+- and Ag+-Doped CdS Nanocrystals
A. Ishizumi and Y. Kanemitsu
J. Phys. Soc. Jpn. 79, 093706 (4 pages) (2010).
(DOI: 10.1143/JPSJ.79.093706)
Plasmon-assisted Photoluminescence Enhancement of Single-Walled Carbon Nanotubes on Metal Surfaces
T. Sakashita, Y. Miyauchi, K. Matsuda, and Y. Kanemitsu
Appl. Phys. Lett. 97, 063110 (3 pages) (2010).
(DOI: 10.1063/1.3467834)
Length-Dependent Photoluminescence Lifetimes in Single-Walled Carbon Nanotubes
Y. Miyauchi, K. Matsuda, Y. Yamamoto, N. Nakashima, and Y. Kanemitsu
J. Phys. Chem. C 114, 12905-12908 (2010).
(DOI: 10.1021/jp1027492)
Multicarrier Recombination and Energy Transfer in Mn-Doped CdS Nanocrystals Studied by Femtosecond Pump-Probe Spectroscopy
S. Taguchi, A. Ishizumi, and Y. Kanemitsu
J. Phys. Soc. Jpn. 79, 063710 (4 pages) (2010).
(DOI: 10.1143/JPSJ.79.063710)
Synthesis, Structures, and Reactivity of Kinetically Stabilized Anthryldiphosphene Derivatives
A. Tsurusaki, N. Nagahora, T. Sasamori, K. Matsuda, Y. Kanemitsu, Y. Watanabe, Y. Hosoi, Y. Furukawa, and N. Tokitoh
Bull. Chem. Soc. Jpn 83, 456-478 (2010).
(DOI: 10.1246/bcsj.20090295) (BCSJ Award Article)
Quantized Auger recombination and carrier multiplication in semiconductor nanoparticles and carbon nanotubes
S. Taguchi, A. Ueda, T. Tayagaki, K. Matsuda, and Y. Kanemitsu
Phys. Status Solidi C 7, 735-738 (2010).
(DOI: 10.1002/pssc.200982806)
Exciton Transport in Suspended Single Carbon Nanotubes Studied by Photoluminescence Imaging Spectroscopy
K. Yoshikawa, K. Matsuda, and Y. Kanemitsu
J. Phys. Chem. C 114, 4353-4356 (2010).
(DOI: 10.1021/jp911518h)
Nonradiative exciton decay dynamics in hole-doped single-walled carbon nanotubes
K. Matsuda, Y. Miyauchi, T. Sakashita, and Y. Kanemitsu
Phys. Rev. B 81, 033409 (4 pages) (2010).
(DOI: 10.1103/PhysRevB.81.033409)
Luminescence and energy-transfer mechanisms in Eu3+-doped GaN epitaxial films
S. Higuchi, A. Ishizumi, J. Sawahata, K. Akimoto, and Y. Kanemitsu
Phys. Rev. B 81, 035207 (6 pages) (2010).
(DOI: 10.1103/PhysRevB.81.035207)
Origin of low-energy photoluminescence peaks in single carbon nanotubes: K-momentum dark excitons and triplet dark excitons
R. Matsunaga, K. Matsuda, and Y. Kanemitsu
Phys. Rev. B 81, 033401 (4 pages) (2010).
(DOI: 10.1103/PhysRevB.81.033401)
Localization dynamics of biexcitons and electron-hole plasmas in GaN-based mixed crystals
D. Hirano, T. Tayagaki, Y. Yamada, and Y. Kanemitsu
Phys. Status Solidi A 207, 33-36 (2010).
(DOI: 10.1002/pssa.200982602)
Control of Auger recombination rate in Si1-xGex/Si heterostructures
T. Tayagaki, S. Fukatsu, and Y. Kanemitsu
J. Phys. Soc. Jpn. 79, 013701 (4 pages) (2010).
(DOI: 10.1143/JPSJ.79.013701)
2009
Femtosecond excitation correlation spectroscopy of single-walled carbon nanotubes: Analysis based on nonradiative multiexciton recombination processes
Y. Miyauchi, K. Matsuda, and Y. Kanemitsu
Phys. Rev. B 80, 235433 (6 pages) (2009).
(DOI: 10.1103/PhysRevB.80.235433)
Direct Observation of Dark Exciton States in Single Carbon Nanotubes
R. Matsunaga, K. Matsuda, and Y. Kanemitsu
J. Lumin. 129, 1702-1705 (2009).
(DOI: 10.1016/j.jlumin.2009.01.028)
Symmetry-induced nonequilibrium distributions of bright and dark exciton states in single carbon nanotubes
R. Matsunaga, Y. Miyauchi, K. Matsuda, and Y. Kanemitsu
Phys. Rev. B 80, 115436 (6 pages) (2009).
(DOI: 10.1103/PhysRevB.80.115436)
Photocarrier recombination dynamics in highly excited SrTiO3 studied by transient absorption and photoluminescence spectroscopy
Y. Yamada, H. Yasuda, T. Tayagaki, and Y. Kanemitsu
Appl. Phys. Lett. 95, 121112 (3 pages) (2009).
(DOI: 10.1063/1.3238269)
Composition dependent dynamics of biexciton localization in AlxGa1-xN mixed crystals
D. Hirano, T. Tayagaki, Y. Yamada, and Y. Kanemitsu
Phys. Rev. B 80, 075205 (4 pages) (2009).
(DOI: 10.1103/PhysRevB.80.075205)
Radiative lifetimes and coherence lengths of one-dimensional excitons in single-walled carbon nanotubes
Y. Miyauchi, H. Hirori, K. Matsuda, and Y. Kanemitsu
Phys. Rev. B 80, 081410(R) (4 pages) (2009).
(DOI: 10.1103/PhysRevB.80.081410)
Temperature dependence of photoluminescence spectra of nondoped and electron-doped SrTiO3: Crossover from Auger recombination to single-carrier trapping
Y. Yamada, H. Yasuda, T. Tayagaki, and Y. Kanemitsu
Phys. Rev. Lett. 102, 247401 (4 pages) (2009).
(DOI: 10.1103/PhysRevLett.102.247401)
Mn-Mn couplings in Mn-doped CdS nanocrystals studied by magnetic circular dichroism spectroscopy
S. Taguchi, A. Ishizumi, T. Tayagaki, and Y. Kanemitsu
Appl. Phys. Lett. 94, 173101 (3 pages) (2009).
(DOI: 10.1063/1.3125433)
Mechanism of exciton dephasing in a single carbon nanotube studied by photoluminescence spectroscopy
K. Yoshikawa, R. Matsunaga, K. Matsuda, and Y. Kanemitsu
Appl. Phys. Lett. 94, 093109 (3 pages) (2009).
(DOI: 10.1063/1.3089843)
Dynamics of Quantized Auger Recombination in CdSe Nanocrystals Studied by Femtosecond Intraband Pump-Probe Spectroscopy
A. Ueda, T. Tayagaki, and Y. Kanemitsu
J. Phys. Soc. Jpn. 78, 083706 (4 pages) (2009).
(DOI: 10.1143/JPSJ.78.083706)
Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn2+-Doped CdS Nanocrystals
A. Ishizumi and Y. Kanemitsu
J. Phys. Soc. Jpn. 78, 083705 (4 pages) (2009).
(DOI: 10.1143/JPSJ.78.083705)
Photoluminescence dynamics and reduced Auger recombination in Si1-xGex/Si superlattices under high-density photoexcitation
T. Tayagaki, S. Fukatsu, and Y. Kanemitsu
Phys. Rev. B 79, 041301(R) (4 pages) (2009).
(DOI: 10.1103/PhysRevB.79.041301)
2008
Spatial distribution of carriers in SrTiO3 revealed by photoluminescence dynamics measurements
H. Yasuda, Y. Yamada, T. Tayagaki, and Y. Kanemitsu
Phys. Rev. B 78, 233202 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.78.233202)
Energy transfer in mixed CdSe and Au nanoparticle monolayers studied by simultaneous photoluminescence and Raman spectral measurements
M. Kawai, A. Yamamoto, N. Matsuura, and Y. Kanemitsu
Phys. Rev. B 78, 153308 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.78.153308)
Reversible and irreversible spectral shifts during photoluminescence blinking in a single CdSe/ZnS core/shell nanocrystal
Y. Ito, K. Matsuda, and Y. Kanemitsu
J. Phys. Soc. Jpn. 77, 103713 (4 pages) (2008).
(DOI: 10.1143/JPSJ.77.103713)
Evidence for dark excitons in a single carbon nanotube due to the Aharonov-Bohm effect
R. Matsunaga, K. Matsuda, and Y. Kanemitsu
Phys. Rev. Lett. 101, 147404 (4 pages) (2008).
(DOI: 10.1103/PhysRevLett.101.147404)
Exciton energy transfer between the inner and outer tubes in double-walled carbon nanotubes
H. Hirori, K. Matsuda, and Y. Kanemitsu
Phys. Rev. B 78, 113409 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.78.113409)
Carrier multiplication in carbon nanotubes studied by femtosecond pump-probe spectroscopy
A. Ueda, K. Matsuda, T. Tayagaki, and Y. Kanemitsu
Appl. Phys. Lett. 92, 233105 (3 pages) (2008).
(DOI: 10.1063/1.2943649)
Photoluminescence enhancement and quenching of single CdSe/ZnS nanocrystals on metal surfaces dominated by plasmon resonant energy transfer
K. Matsuda, Y. Ito, and Y. Kanemitsu
Appl. Phys. Lett. 92, 211911 (3 pages) (2008).
(DOI: 10.1063/1.2937142)
Dynamics of biexciton localization in AlxGa1-xN mixed crystals under exciton resonant excitation
D. Hirano, T. Tayagaki, Y. Yamada, and Y. Kanemitsu
Phys. Rev. B 77, 193203 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.77.193203)
Dynamics of nonlinear blue photoluminescence and Auger recombination in SrTiO3
H. Yasuda and Y. Kanemitsu
Phys. Rev. B 77, 193202 (4 pgaes) (2008).
(DOI: 10.1103/PhysRevB.77.193202)
Direct and stepwise energy transfer from excitons to plasmons in close-packed metal and semiconductor nanoparticle monolayer films
K. Hosoki, T. Tayagaki, S. Yamamoto, K. Matsuda, and Y. Kanemitsu
Phys. Rev. Lett. 100, 207404 (4 pages) (2008).
(DOI: 10.1103/PhysRevLett.100.207404)
Exciton fine structure in a single carbon nanotube revealed through spectral diffusion
K. Matsuda, T. Inoue, Y. Murakami, S. Maruyama, Y. Kanemitsu
Phys. Rev. B 77, 193405 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.77.193405)
Dynamics of electron-hole plasmas and localized excitons in highly excited GaN-based ternary alloys
D. Hirano and Y. Kanemitsu
J. Lumin. 128, 712-714 (2008).
(DOI: 10.1016/j.jlumin.2007.10.013)
Photoluminescence Dynamics of Mn2+-doped CdS/ZnS Core/Shell Nanocrystals: Mn2+ Concentration Dependence
A. Ishizumi, E. Jojima, A. Yamamoto, and Y. Kanemitsu
J. Phys. Soc. Jpn. 77, 053705 (4 pages) (2008).
(DOI: 10.1143/JPSJ.77.053705)
Energy transfer from semiconductor nanocrystal monolayers to metal surfaces revealed by time-resolved photoluminescence spectroscopy
A. Ueda, T. Tayagaki, and Y. Kanemitsu
Appl. Phys. Lett. 92, 133118 (3 pages) (2008).
(DOI: 10.1063/1.2906369)
Disorder-induced rapid localization of electron-hole plasmas in highly excited InxGa1-xN mixed crystals
D. Hirano, T. Tayagaki, and Y. Kanemitsu
Phys. Rev. B 77, 073201 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.77.073201)
Exciton dephasing and multiexciton recombinations in a single carbon nanotube
K. Matsuda, T. Inoue, Y. Murakami, S. Maruyama, and Y. Kanemitsu
Phys. Rev. B 77, 033406 (4 pages) (2008).
(DOI: 10.1103/PhysRevB.77.033406)
2007
Mechanism of photoluminescence enhancement in single semiconductor nanocrystals on metal surfaces
Y. Ito, K. Matsuda, and Y. Kanemitsu
Phys. Rev. B 75, 033309 (4 pages) (2007).
(DOI: 10.1103/PhysRevB.75.033309)
Mechanism of the growth of ZnSe nanowires with Fe catalysts
Y. Ohno, T. Shirahama, S. Takeda, A. Ishizumi, and Y. Kanemitsu
Solid State Commun. 141, 228-232 (2007).
(DOI: 10.1016/j.ssc.2006.10.029)
2006
Exciton localization of single-walled carbon nanotubes revealed by femtosecond excitation correlation spectroscopy
H. Hirori, K. Matsuda, Y. Miyauchi, S. Maruyama and Y. Kanemitsu
Phys. Rev. Lett. 97, 257401 (4 pages) (2006).
(DOI: 10.1103/PhysRevLett.97.257401)
Collective and single-particle intersubband excitations in narrow quantum wells selected by infrared absorption and resonant Raman scattering
T. Unuma, K. Kobayashi, A. Yamamoto, M. Yoshita, K. Hirakawa, Y. Hashimoto, S. Katsumoto, Y. Iye, Y. Kanemitsu, and H. Akiyama
Phys. Rev. B 74, 195306 (5 pages) (2006).
(DOI: 10.1103/PhysRevB.74.195306)
Diameter dependence of exciton-phonon interaction in individual single-walled carbon nanotubes studied by microphotoluminescence spectroscopy
T. Inoue, K. Matsuda, Y. Murakami, S. Maruyama, and Y. Kanemitsu
Phys. Rev. B 73, 233401 (4 pages) (2006).
(DOI: 10.1103/PhysRevB.73.233401)
Blue luminescence from electron-doped SrTiO3
D. Kan, R. Kanda, Y. Kanemitsu, Y. Shimakawa, M. Takano, T. Terashima, and A. Ishizumi
Appl. Phys. Lett. 88, 191916 (3 pages) (2006).
(DOI: 10.1063/1.2202750)
Luminescence spectra and dynamics of Mn-doped CdS core/shell nanocrystals
A. Ishizumi and Y. Kanemitsu
Adv. Mater. 18, 1083-1085 (2006).
(DOI: 10.1002/adma.200600018)
Temperature dependence of exciton localization dynamics in InxGa1-xN epitaxial films
Y. Kanemitsu, K. Tomita, D. Hirano and H. Inouye
Appl. Phys. Lett. 88, 121113 (3 pages) (2006).
(DOI: 10.1063/1.2187954)
Luminescence properties of impurity-doped semiconductor nanoparticles
Y. Kanemitsu and A. Ishizumi
J. Lumin. 119-120, 161-166 (2006).
(DOI: 10.1016/j.jlumin.2005.12.026) (Review)
2005
Blue-light emission at room temperature from Ar+-irradiated SrTiO3
D. Kan, T. Terashima, R. Kanda, A. Masuno, K. Tanaka, S. Chu, H. Kan, A. Ishizumi, Y. Kanemitsu, Y. Shimakawa, and M. Takano
Nature Mater. 4, 816-819 (2005).
(DOI: 10.1038/nmat1498)
Subpicosecond luminescence spectroscopy of exciton localization in InxGa1-xN films
Y. Kanemitsu, K. Tomita, and H. Inouye
Appl. Phys. Lett. 87, 151120 (3 pages) (2005).
(DOI: 10.1063/1.2103407)
Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy
A. Ishizumi, K. Matsuda, T. Saiki, C. W. White, and Y. Kanemitsu
Appl. Phys. Lett. 87, 133104 (3 pages) (2005).
(DOI: 10.1063/1.2058228)
Fe-catalytic growth of ZnSe nanowires on a ZnSe(001) surface at low temperatures by molecular-beam epitaxy
Y. Ohno, T. Shirahama, S. Takeda, A. Ishizumi, and Y. Kanemitsu
Appl. Phys. Lett. 87, 043105 (3 pages) (2005).
(DOI: 10.1063/1.1997275)
Structural and luminescence properties of Eu-doped ZnO nanorods fabricated by a microemulsion method
A. Ishizumi and Y. Kanemitsu
Appl. Phys. Lett. 86, 253106 (3 pages) (2005).
(DOI: 10.1063/1.1952576)
Photoluminescence intermittency in an individual single-walled carbon nanotube at room temperature
K. Matsuda, Y. Kanemitsu, K. Irie, T. Saiki, T. Someya, Y. Miyauchi, and S. Maruyama
Appl. Phys. Lett. 86, 123116 (3 pages) (2005).
(DOI: 10.1063/1.1894609)
Photoluminescence dynamics of GaN under intense band-to-band and exciton resonant excitation
T. Nagai, A. Yamamoto, and Y. Kanemitsu
Phys. Rev. B 71, 121201(R) (4 pages) (2005).
(DOI: 10.1103/PhysRevB.71.121201)
2004
Enhanced luminescence from electron-hole droplets in silicon nanolayers
S. Nihonyanagi and Y. Kanemitsu
Appl. Phys. Lett. 85, 5721-5723 (2004).
(DOI: 10.1063/1.1829161)
Intersubband electronic Raman scattering in narrow GaAs single quantum wells dominated by single-particle excitations
T. Unuma, K. Kobayashi, A. Yamamoto, M. Yoshita, Y. Hashimoto, S. Katsumoto, Y. Iye, Y. Kanemitsu, and H. Akiyama
Phys. Rev. B 70, 153305 (4 pages) (2004).
(DOI: 10.1103/PhysRevB.70.153305)
Space-resolved photoluminescence of ZnS:Cu,Al nanocrystals fabricated by sequential ion implantation
A. Ishizumi, C. W. White, and Y. Kanemitsu
Appl. Phys. Lett. 84, 2397-2399 (2004).
(DOI: 10.1063/1.1689738)
Band-gap renormalization in highly excited GaN
T. Nagai, T. J. Inagaki, and Y. Kanemitsu
Appl. Phys. Lett. 84, 1284-1286 (2004).
(DOI: 10.1063/1.1650552)