[18p-P13-1~13] 13.9 Compound solar cells

[18p-P13-4] Impact of Incorporation of Silver in Crystal Lattice of the Cu₂ZnSnS₄ Thin Film on its Photovoltaic and Photoelectrochemical Performances

〇(M1)Takato Kawaguchi¹, Thi Hiep Nguyen², Takashi Harada², Shuji Nakanishi², Jakapan Chantana³, Takashi Minemoto³, Shigeru Ikeda¹ (1.Konan Univ., 2.Osaka Univ., 3.Ritsumeikan Univ.)

Keywords:thin film solar cell, compound semiconductor, Effect(s) of Ag incorporation

Cu₂ZnSnS₄ (CZTS) is a promising photoabsorber material for photovoltaic (PV) solar cells as well as a photocathode for photoelectrochemical (PEC) water splitting and carbon oxide fixation. We have recently demonstrated successful fabrication of CZTS film with sufficient qualities for PV and PEC applications by using a facile spray pyrolysis method. For further improvements of PV and PEC properties, impacts of silver (Ag) incorporation into the crystalline lattice of CZTS on its structural, optical, and electric properties were examined.