PHOTOELECTROCHEMICAL AND SOLAR-CELL STUDIES OF N-CDSE FILMS GROWN BY REPEATED ELECTRODEPOSITION CYCLES

Photoelectrochemical studies of the n-CdSe films prepared by a repeated electrodeposition process employing in situ etching, cathodic deposition and annealing are reported. The influence of the anodic etching current density on the photoanodic behaviour of the films is also discussed. It is shown that better solar cell performance can be obtained by using the repeated electrodeposition process compared with the normal single-step electrodeposition. The solar cell studies have also been correlated with the experimentally determined minority carrier diffusion length and the surface morphology of the films.