Abstract: The combination of low-cost and abundant Cu2ZnSnS4 (CZTS) material and a low-cost non-vacuum and green sol-gel technique attracts researcher’s attention for application in industrialized fabrication of higher performance-price ratio CZTS solar cells. In order to know its future research direction, the development of sol-gel fabrication of CZTS thin films and solar cells has been reviewed. Effects of different preparation conditions such as sol-gel routes, solvents and sulfuration on CZTS thin films and devices are discussed. The effect of Na-doping and sulfuration-annealing on CZTS films are also analyzed. The development trend about green fabrication of CZTS films and devices is discussed.
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