[15a-2M-1~13] 13.10 Compound solar cells

[15a-2M-5] Fabrication of Cu₂ZnSnS₄ Solar Cells with In₂S₃ Buffer Layers

〇chigusa ozaki¹, Feng Jiang¹, Takashi Harada¹, Shuji Nakanishi¹, Shigeru Ikeda¹ (1.Osaka Univ.)

Keywords:solar cells,CZTS

In₂S₃ film has been attracted considerable interest as new buffer layer for Cu₂ZnSnS₄ (CZTS)solar cells. In this study, we fabricated CZTS solar cells with various thickness of In₂S₃ buffer layers and the photovoltaic performance was investigated. From the analysis, the improvement of photovoltaic performance of CZTS solar cells with post-heating of In₂S₃ layer was found. The champion device of 100nm-thick In₂S₃/CZTS exhibited efficiency of 6.9 %.