Semiconductor Liquid Junction Solar Cell Based on Chemically Deposited Bi2 S 3 Thin Film and Some Semiconducting Properties of Bismuth Chalcogenides

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Abstract
The photoelectrochemical behavior of chemically deposited thin film in aqueous solution is studied. This paper also describes the dependence of the deposition of bismuth chalcogenides on the pH of the solution. The electrical resistance, mobility, and carrier concentration of bismuth chalcogenides have been measured. Optical absorption spectra reveal the bandedges which are 1.47 and 0.35 eV for and , respectively. The activation energy of electrical conduction of obtained is ∼0.9 eV.