ABSTRACT
CuInS2 thin films have been prepared by chemical spray pyrolysis from aqueous solution containing CuCl2, InCl3 and SCN2H4 onto heated glass substrates. The formation of CuInS2 passes through the complex compound Cu(SCN2H4)Cl•1/2H2O formed in the solution. Thermal decomposition of the complex results in copper sulfide at 230 °C and CuInS2 forms thereupon. CuInS2 films with chalcopyrite structure have been grown by varying of Cu/In ratio in solution at growth temperatures 300–380 °C.
