Effect of variation in indium concentration on the photosensitivity of chlorine doped In2S3 thin films

Autor: K.P. Vijayakumar, C. Sudha Kartha, Angel Susan Cherian
Rok vydání: 2014
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
DOI: 10.1063/1.4861976
Popis: Consequence of variation in Indium concentration in chlorine doped In2S3 thin films deposited by spray pyrolysis technique was studied. Chlorine was incorporated in the spray solution, using HCl and Indium concentration was varied by adjusting In/S ratio Interestingly, the photo response of all chlorine doped samples augmented compared to pristine samples; but the highest photosensitivity value of ∼2300 was obtained only when 36ml 0.5M HCl was added to the solution of In2S3 having In/S=2/8. It was also observed that samples with high photosensitivity possess higher band gap and variation in sub band gap absoption levels were observed with increase in Indium concentration. The present study proved that concentration of Indium plays an important role in controlling the crystallinity and photosensitivity of chlorine doped samples.
Databáze: OpenAIRE