The reactants with cheap and lower grade chemicals were purified by electrochemical mehod,and then Electrodeposition were carried out to form CdTe thin films on the self-made CdS substrates in this paper.The films were uniform and adhensive with thickness of 1(m.After annealing the n-CdTe/n-CdS films turned to be type converted as p-CdTe/n-CdS,SEM,XRD,UV-visble absorbance spectra and Mott-Schottky plot etc were used to analyse and charcterise.The results indicated the quality of the films was good so it can be used as solar cell applications.The further work to characterise its solar cells are under way.
