Tóm tắt:

Keterite Cu2ZnSnS4 (CZTS) thin films were fabricated by spray pyrolysis deposition using aqueous precursor solutions with and without the addition of HCl. The effects of HCl on the crystallinity, morphology and photovoltaic properties of CZTS thin films were investigated. The results showed that the presence of HCl had significant effects on the crystal growth, grain size, and surface morphology of the fabricated CZTS thin films resulting in the improvement of the photovoltaic properties of the solar cell.