Research Article
Open Access
“Synthesis, characterization and gas sensing performance of spray pyrolysed nanostructured CuInS2 thin films”
R. H. Bari* and S. B. Patil
Nanomaterials Research Laboratory, Department of Physics, G. D. M. Arts, K. R. N. Commerce
and M.D. Science College, Jamner 424 206, Maharashtra, India.
S. B. Patil et al /Int.J. Chemical Concepts. 2016,2(2),pp 88-95.
Abstract
Spray pyrolysis technique was employed to deposit nanostructured CuInS2 thin films on to
the glass substrates heated at 300 oC. The structural, surface morphology were studied using X-ray
diffraction (XRD), Field emission scanning electron microscopy (FE-SEM). Elemental composition was
conducted using EDAX. The gas sensing performance of the films was tested for various hazardous
gases. The sensor (10 min) showed high gas response (S = 890 at 100 oC) on exposure of 50 ppm of H2S
and high selectivity against other gases. Its response time was short (7 s) and recovery was also fast (11
s). The results are discussed and interpreted.
Keywords
Nanostructured CuInS2, H2S gas sensing, response and recovery time
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