CHARACTERIZATION OF CO-ELECTRODEPOSITED AND SELENIZED CIS (CUINSE2) THIN-FILMS

The structural, morphological, compositional and photoelectrochemical properties of co-electrodeposited and selenized CIS thin films were ch aracterized using various techniques. As-deposited as well as selenize d films exhibited a compact or a granular morphology depending on the composition. The film stoichiometry was improved after selenization at 550 degrees C in a tubular furnace, The film conductivity type, carri er concentration and flat-band potential were determined from the phot oelectrochemical studies. The films are formed with a mixed compositio n of the binary as well as the ternary phases. From the results of the se studies, a model is suggested for the superficial as well as the bu lk conductivity types of the film. (C) 1997 Elsevier Science S.A.