Abstract

A low-temperature solvothermal method was used to in-situ synthesize Cu2ZnSnS4 (CZTS) nanospheres thin film on transparent conductive FTO glass substrates. The CZTS nanospheres were in kesterite-phase, with the diameters of 190–300nm. The CZTS/FTO was used as counter electrodes (CEs) of dye-sensitized solar cells without any post-treatment. The power conversion efficiency reached up to 1.54%.

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