[22p-P08-1~16] 13.9 Compound solar cells

[22p-P08-7] Effect of retention time in the heat treatment conditions of compound solar cell light-absorbing layer Cu₂SnS₃ thin film prepared by wet process

〇(B)Yuki Igarashi¹, Hasegawa Satomi¹, Ishida Tomoki¹, Tanaka Kunihiko², Moriya Katsuhiko¹ (1.NIT, Tsuruoka Col., 2.NUT)

Keywords:compound solar cells, solar cell materials, Cu2SnS3

Cu₂SnS₃ (CTS), an environmentally friendly semiconductor material that has little impact on the human body, was developed as an alternative material to silicon-based solar cells, which are currently the mainstream product in the solar cell market. In this study, by adopting the sol-gel dip coating method, a CTS thin film was produced at low cost without using a vacuum process for use as a solar cell light absorption layer. In addition, we aimed to improve crystallinity by examining the retention time in the heat treatment conditions during the thin film fabrication stage.