Detection of H2S gas at lower operating temperature using sprayed nanostructured In2O3 thin films

Bulletin of materials science

Ramesh H Bari¹  Anil R Bari²  Parag P Patil³  Sharad B Patil³ 

[1] Department of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, India$$Department of Physics, Arts, Commerce and Science College, Bodwad 425 310, India$$Department of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, IndiaDepartment of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, India$$Department of Physics, Arts, Commerce and Science College, Bodwad 425 310, India$$Department of Physics, Arts, Commerce and Science College, Bodwad 425 310, IndiaDepartment of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, India$$Department of Physics, Arts, Commerce and Science College, Bodwad 425 310, India$$;Department of Physics, Arts, Commerce and Science College, Bodwad 425 310, India$$Department of Physics, Arts, Commerce and Science College, Bodwad 425 310, IndiaDepartment of Physics, Arts, Commerce and Science College, Bodwad 425 310, India$$;Department of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, India$$Department of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, IndiaDepartment of Physics, G. D. M. Arts, K. R. N. Commerce and M. D. Science College, Jamner 424 206, India$$

关键词: Nanostructured In2O3;    thin films;    spray pyrolysis;    H2S gas sensor;    low temperature.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Nanostructured indium oxide (In₂O₃) thin films were prepared by spray pyrolysis (SP) technique. X-ray diffraction (XRD) was used to investigate the structural properties and field emission scanning electron microscopy (FESEM) was used to confirm surface morphology of In₂O₃ films. Measurement of electrical conductivity and gas sensing performance were conducted using static gas sensing system. Gas sensing performance was studied at different operating temperature in the range of 25â€�??150°C for the gas concentration of 500 ppm. Themaximum sensitivity (ð‘�?? = 79%) to H₂S was found at lower temperature of 50 °C. The quick response (4 s) and fast recovery (8 s) are the main features of this film.

【 授权许可】

Unknown