Time dependent synthesis of crystalline Bi2S3 and its application as a sensitizer in SnO2 based solar cells

Abstract In the present study, thin films of Bi2S3 with hollow morphology were deposited by chemical bath deposition at room temperature. The structural, morphological and optical properties of Bi2S3 films were investigated as a function of deposition time. To study the photovoltaic properties, sensitization of SnO2 photoanode with Bi2S3 was achieved successfully via chemical bath deposition. The solar cell fabricated using SnO2–Bi2S3 photoanode showed an open circuit voltage (V OC) of 357 mV, short circuit current density of (J SC) 740.16 μA cm−2 and fill factor (F.F.) of 31%.