Abstract: A quaternary chalcogenide-based compound Cu2ZnSnS4 (CZTS) is a novel material for thin film solar cell, posses-sing kesterite structure, p-type conductivity, a band gap energy of about 1.5 eV and an absorption coefficient of higher than 104 cm-1, which match well with the solar spectrum. Based on the above reasons, CZTS thin film is expected to be a new material for thin film solar cell, which can lower the cost and be developed and utilized in large scale. The property and device structure of CZTS thin film solar cell are elaborated. In addition, the preparation of CZTS thin film by sol-gel method and the research progress in the corresponding device performance are also investigated in detail. Finally, the key strategies of this technique, as well as the effective improvement measure are pointed out, and the future study direction of CZTS thin film solar cells is proposed.
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2017, Vol. 31 
