[18p-B1-1~20] 13.9 Compound solar cells

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[18p-B1-12] Temperature characteristics of InGaP solar cells with DBR structure for optical wireless power transmission

〇Ryusei Takahashi¹, Junichi Suzuki¹, Shunsuke Kawamura¹, Kouichi Akahane², Shiro Uchida¹ (1.Chiba Inst., 2.NICT)

Keywords:

InGaP solar cell,Optical wireless power transmission

InGaP solar cells with DBR structures have been reported to have high photoelectric conversion efficiency, but there is concern that the reflectance of the DBR structure may shift to the left or right as temperature changes. When mounting in equipment or applying in water, there is a concern that the reflectance to wavelength in the DBR structure may shift to the left or right due to temperature change. Therefore, we measured the short-circuit current I_sc of the InGaP solar cells at various temperatures to investigate the change in reflectance of the DBR layer with temperature change. As a result, I_sc did not change as the temperature of the InGaP solar cell changed. This suggests that can be used in environments with temperature change.