ZINC-OXIDE THIN-FILMS BY THE SPRAY-PYROLYSIS METHOD

Undoped and In-doped ZnO thin films have been prepared on glass substr ates from solutions of Zn(CH3CO2)(2) . 2H(2)O in a mixture of deionize d water and isopropyl alcohol by spray pyrolysis. Their optical, morph ological and structural qualities have been studied and the effect of the preparation conditions discussed. It was shown that the main facto rs determining the parameters of ZnO films are the growth temperature and the indium concentration. The growth temperatures of 625-675 K, in dium doping levels of 1-1.5 at.% and precursor concentrations of 0.1-0 .2 mol 1(-1) are preferable to achieve ZnO films with optical and stru ctural qualities as required for solar cell applications.