Journal
OPTIK
Volume 217, Issue -, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2020.164896
Keywords
In2S3; Chlorine doping; Spray pyrolysis; XRD; Spectrophotometer; Photoconductivity
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Funding
- Tunisian Ministry of Higher Education and Scientific Research
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Thin layers of indium sulphide with different concentration of chlorine were deposited on substrates of glass, heated at a temperature of 350 degrees C, by using technique spray pyrolysis. We studied the effect of incorporation of chlorine in the layers on their structural, optical and the photoconductivity properties. X-ray diffraction indicates that our layers are polycrystalline and crystallize in cubic phase beta-In2S3 with unit lattice length of a similar to 10.67 angstrom. We found that the crystallite size is between 10 and 13 nm. From the optical study, the transmittance is around 80 % whereas the energy of band gap increased from 2.53 eV to 2.72 eV with the fraction of chlorine. Even though the photoconductivity study shows that our layers are slightly sensitive to light, they can be used for photovoltaic and optoelectronic applications by enhancing their photosensitivity.
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