Fabrication And Characterization Of 1% Indium Doped Thin Film Cdse0.3Te0.7 /Polyiodide Photoelectrochemical Solar Cell

Abstract

Photoelectrochemical (PEC) solar cell were fabricated using an aqueous polyiodide electrolyte in junction with vacuum evaporated 1% Indium doped thin films of CdSe0.3Te0.7 were coated with thickness of ≈ 400 nm photoanode on conducting glass at a
pressure of 5 × 10−5 torr held at room temperature. The as-grown thin films were characterized by X-ray diffraction and optical absorption. It is found that there is a large prevalence of CdTe and a small presence of CdSe leading to an overall cubic structure. The optical band gap of the thin film of 1% Indium doped CdSe0.3Te0.7 was Eg ≈ 1.55 eV. The photoelectrochemical solar cells showed a solar power conversion efficiency of η ≈ 1.05 %. The results of the experimental data are explained and discussed.