[19p-P07-1~13] 13.9 Compound solar cells

[19p-P07-11] Effect of Additives on CZTS Films Fabricated by Sol-gel Technique

〇Ruka Yazawa¹, Md Shahiduzzaman^1,2, Masahiro Nakano¹, Makoto Karakawa^1,2, Jean Michel Nunzi², Tetsuya Taima^1,2 (1.Kanazawa Univ., 2.NanoMari)

Keywords:

inorganic semiconductor,CZTS,compound solar cell

Cu2ZnSnS4 (CZTS) is an inorganic semiconductor made from abundant elements, expected to be a low-cost and environmentally friendly solar cell material. One of common film formation methods is spin-coating. However, the current method using hydrazine is highly toxic, and the method has pinhole issue. It is necessary to develop a safer and more effective technique.In this study, we produced CZTS thin films using a low-toxicity solvent, and lauryl dimathylaminoacetic acid as additive to suppress pinholes and improve crystallinity.