Electrode capacitance and photocurrent spectra of electrodeposited polycryst. Hg1-xCdxTe thin films of varying (1-x) were measured in polysulfide redox solution, hence the flatband potential Ffb and the band gap of Hg1-xCdxTe thin films obtained. Only the location of conduction band shifts neg. with increasing (1-x), while the valence band is almost constant The experimental open circuit photovoltage is smaller than theor. value calculated through Ffb, therefore there is a possibility of promoting the experimental open circuit photovoltage.

Key words: OXIDATION REDUCTION REACTION, BAND STRUCTURES, THIN FILM ANODES, PHOTO-ELECTROCHEMISTRY, PHOTOELECTRICAL CONVERSION