PREPARATION AND PROPERTIES OF CZTS THIN FILM PREPARED BY SPRAY PYROLYSIS

Abstract

In this work we have developed thin-film CZTS (Cu₂ZnSnS₄) by "spray pyrolysis" technique on preheated glass substrates from an aqueous solution containing ions of copper, zinc, tin and sulfur at different temperatures. Then we performed structural analysis of samples prepared by different characterization methods such as X-ray diffraction (RXD), Raman microscopy, and transmission electron microscopy (SEM).

Experimental results have verified that the thin films deposited CZTS are relatively uniform on the substrates. Structural analysis by X-ray diffraction showed that the deposited films are Kestrite structure with a bias in the direction <112> with the appearance of a second phase the binary Cu₂-xS, which is confirmed by the analysis Raman spectroscopy.