[9a-N323-1~9] 13.9 Compound solar cells

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

[9a-N323-7] Incident laser intensity dependence of a GaInP solar cell with a distributed Bragg reflector for optical wireless power transmission

〇(M1)Yuto Kaneko¹, Ryusei Takahashi¹, Junichi Suzuki¹, Reo Aoyama¹, Moeka Chiba¹, Ryoga Kakiuchi¹, Gin Hirano¹, Koichi Naniwae², Toshihiko Fukamachi², Masato Hagimoto², Kouichi Akahane³, Shiro Uchida¹ (1.Chiba Tech., 2.Ushio Inc., 3.NICT)

Keywords:

optical wireless power transmission,GaInP solar cell

GaInP solar cells with DBR layers were irradiated with laser light of wavelengths 638 nm, 650 nm, and 660 nm at varying intensities. As a result, the maximum conversion efficiency of 50.1% was achieved when irradiated with 150 mW (3.4 W/cm2) of 650 nm laser light. Further improvement in conversion efficiency is expected by narrowing the grid electrode width of GaInP solar cells.