Our laboratory aims to develop innovative energy functions of nanomaterials (room temperature single-electron transport, highly efficient photon concentration, long-lived charge separation, magnetic exchange coupling, visible light-responsive overall water splitting). For this porpose, we tune the number of confined electrons, free carrier density, localized surface plasmon resonance wavelength, exciton lifetime, spin, and catalytic ability by precisely controlling the primary structure (size, shape, composition, and phase-segregation manner) and secondary structure (spacially ordered structure) of various inorganic nanoparticles.
The main research themes are as follows.

1)Development of Visible-to-Near Infrared Nanoplasmonics Using Metal & Heavily-Doped Semiconductor Nanoparticles
2)Formation of High-Performance Photocatalysts using Heterostructured Nanoparticles
3)Synthesis of Unprecedented Nanoparticles by Element Substitution Science and Development of Their Novel Functions
4)Development of Metal Cluster Chemistry Using π-Metal Orbital Interaction
5)Synthesis of Magnetic Nanoparticles toward High-Performance Permanent Magnets

Metal Nanoparticles Obtained by One-Step Reaction

Semiconductor Nanoparticles Obtained by One-Step Reaction

Nanoparticles Obtained by Multi-Step Reaction