N-type SnS thin films applicable for Solar cell

Harmless, high-efficient, thin, and light, low-cost Solar cell

Overview

Thin film solar cells using SnS (tin sulfide) have the following features　
- Does not contain harmful elements such as Cd and Te
- Consists only of inexpensive elements (Sn and S)
(Raw materials cost 1/7 of silicon, 1/2 of CdTe and 1/14 of CIGS)
- Absorb light with a thickness of 2 -3 microns
(silicon-based to -500 microns)
However, in order to realize SnS solar cells with high-efficiency homo-p-n junctions, it was necessary to realize n-type SnS thin films, which could not be produced because of technical problem.
The present invention is the world's first n-type SnS thin film, which could not be produced until now, and It is also related to a solar cell using it.

Features・Outstandings

Product Application

・Solar cells and photoelectric conversion elements

Related Works

[1] Issei Suzuki et al 2022 J. Phys. Energy 4 042002

IP Data

IP No.　 ：PCT/JP2021/017400 　　
Inventor ：SUZUKI Issei, KAWANISHI Sakiko, YANAGI Hiroshi
keyword ：Harmless, high-efficient, thin, andlight, low-costSolarcell, World’sfirstn-typeSnSthinfilm