Sudha Kartha, C; Vijayakumar, K P; Meril, Mathew; Angel, Susan Cherian(Elsevier, September 20, 2009)
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Abstract:
Effect of chlorine doping on the opto-electronic properties of β-In2S3 thin film, deposited by spray pyrolysis
technique is studied for the first time. Chlorine was incorporated in the spray solution, using HCl. Pristine
sample prepared using In(NO3)3 and thiourea as the precursors showed very low photosensitivity. But upon
adding optimum quantity of chlorine, the photosensitivity increased by 3 orders. X-ray analysis revealed that
crystallinity was also increasing up to this optimum level of Cl concentration. It was also observed that
samples with high photosensitivity were having higher band gap. The present study proved that doping with
chlorine was beneficial as this could result in forming crystalline and photosensitive films of indium sulfide.