Studies on spray pyrolised nanostructured SnO₂ thin films for H₂ gas sensing application

• Autorzy: Bari R. H. , Patil S. B.
• Języki publikacji: EN

Abstrakty

EN

The objective of this work is to study the influence of pyrolysis temperature on structural, surface morphology and gas sensing properties of the nanostructured SnO₂ thin films prepared by spray pyrolysis technique. These films were characterized for the structural, morphological and elemental composition carried by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrophotometer (EDAX). The information of crystallite size, dislocation density and microstrain is obtained from the full width-at half- maximum (FWHM) of the diffraction peaks. Effect of sprayed deposition temperature on H₂ gas sensing performance and electrical properties were studied using static gas sensing system. The sensor (Tpyr. = 350 °C) showed high gas response (S = 1200 at 350 °C) on exposure of 500 ppm of H₂ and high selectivity against other gases The results are discussed and interpreted.

Słowa kluczowe

EN

Spray Pyrolysis; Nanostructured SnO2; thin films; H2 gas sensor; Microstrain; Electrical conductivity

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2014
• Tom: Vol. 17, iss. 2
• Strony: 125--141
• Opis fizyczny: Bibliogr. 40 poz., rys., wykr., wz.

Twórcy

autor

Bari R. H.

• Nanomaterials Research Laboratory, Department of Physics, G. D. M. Arts, K. R. N. Commerce and M.D. Science College, Jamner 424 206, India

autor

Patil S. B.

• Nanomaterials Research Laboratory, Department of Physics, G. D. M. Arts, K. R. N. Commerce and M.D. Science College, Jamner 424 206, India

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