Abstract
Copper Zinc Tin Sulphide (CZTS) is one of the most promising materials for absorber layer in thin film solar cells. However, the synthesis of CZTS requires careful optimization as it is a quaternary material with a high probability of formation of secondary phases during the synthesis. Here we report the synthesis of CZTS from its binary constituents i.e. CuS, SnS and ZnS at 1030 K in laboratory. The effects of excess sulphur in starting precursors on the chemical compositions of the compound are investigated. Structural and optical properties of synthesized compound are studied in context of its application as absorber material in thin film solar cells.
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