Research Themes

We have been exploring novel energy-harvesting materials, such as thermoelectric materials, superconductors, cathode materials for rechargeable batteries, photovoltaic materials, and dielectric materials. Functions of a solid substance primarily depend on the electronic structure, directly derived from its crystal structure. Through high-quality structure analyses using neutron and X-ray diffraction, combined with first-principles calculations, we have been fabricating materials with desired functions. To date, more than 40 novel materials have been discovered based on our guiding principles. For developing future device technologies, challenges on π-type and multilayer-type thermoelectric devices are currently underway.

1. Synthesis and physical properties of next-generation thermoelectric materials and devices
2. Preparation of cathode materials for rechargeable batteries based on first-principles calculations
3. Fabrication of transition metal silicide photovoltaic thin films
4. Development of Peltier cooling materials utilized around room temperature
5. Preparation and thermoelectric properties of organic thin films