Presentation Information
[22p-13P-9]Rate Determining Process of Ge-Sensitized Thermal Cell
Kenta Tamaki1, 〇Sachiko Matsushita1,2 (1.Tokyo Tech., 2.elleThermo, Ltd.)
Keywords:
thermal energy conversion,Germanium,electrochemistry
We have been studying semiconductor-sensitized thermal cells (STCs) to capture waste heat that is below 200°C. These cells generate electricity through the thermally excited charge of a semiconductor, replacing the photo-excited charge of a dye in a dye-sensitized solar cell. Power generation has been verified in several systems, and we observed good power generation at 80°C in the system consisting of a Ge electrode, an organic electrolyte containing copper ions, and an FTO electrode. However, as this system is still in the early stages of research, guidelines for material design have not yet been established. Therefore, we carried out various electrochemical measurements, including steady-state polarization measurements, to identify the rate-limiting processes in this system.