[23a-12L-1~10] 13.9 Compound solar cells

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[23a-12L-7] Application of Intermediate-Band Solar Cells to Dual-Wavelength Laser Power Converters

〇Yasuhiko Takeda¹ (1.Toyota Central R&D Labs.)

Keywords:

Intermediate-band solar cell,Optical wireless power transmisison,laser power converter

I propose the basic structure of a laser power converter (LPC) on the basis of intermediate-band solar cells. 808 nm photons incident from a high-power and low-cost laser diode excite electrons directly, while 1470 nm eye-safe-laser photons used in urban districts excite electrons by two steps via the intermediate band. Further, this LPC functions as a highly efficient solar cell. The conversion efficiencies for 808 nm light, 1470 nm light, and solar light in the radiative limit are competitive with those conventional single-function devices dedicated.