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1. (WO2018105971) COMPOUND SEMICONDUCTOR SOLAR CELL

Pub. No.:    WO/2018/105971    International Application No.:    PCT/KR2017/014080
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 05 00:59:59 CET 2017
IPC: H01L 31/04
H01L 31/0224
H01L 31/02
Applicants: LG ELECTRONICS INC.
Inventors: KIM, Gunho
KIM, Soohyun
Title: COMPOUND SEMICONDUCTOR SOLAR CELL
Abstract:
According to an aspect of the present invention, there is provided a compound semiconductor solar cell, comprising: a light absorbing layer comprising a compound semiconductor; a first electrode positioned on a front surface of the light absorption layer; a first contact layer positioned between the light absorbing layer and the first electrode; a second electrode positioned on a rear surface of the light absorbing layer and having a sheet shape; and a second contact layer positioned between the light absorbing layer and the second electrode. The second contact layer is partially formed on the rear surface of the light absorbing layer on the projection surface, and the second electrode includes a first portion in direct contact with the second contact layer and a second portion located between the first portions.