Abstract :
The CdS1 xSex (0.0 6 x 6 1.0) thin films of various compositions have been deposited onto the amorphous and FTO coated glass
substrates using a spray pyrolysis technique. An electrode/electrolyte interface has been formed between an n-type CdS1 xSex
(0.0 6 x 6 1.0) alloyed/mixed type semiconductor and a sulphide/polysulphide redox electrolyte and investigated through the current–
voltage, capacitance–voltage and photovoltaic power output characteristics. The dependence of the dark current through the junction
and the junction capacitance on the voltage across the junction have been examined and analysed. Upon illumination of the interface
with a light of 20 mW/cm2, an open-circuit voltage of the order of 335 mV and a short-circuit current of 1.02 mA/cm2 have been developed
(for x = 0.8), which results in energy conversion efficiency and fill factor 0.79% and 0.46% respectively. The magnitudes of the barrier
heights at the interfaces have been determined. The significant electrochemical properties have been observed for a cell with electrode
composition x = 0.8.
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