Effect of sensitizers on H2S sensing properties of ZnO nanowires

Preetam K. Sharma, Niranjan S. Ramgir, C. P. Goyal, N. Datta, S. Srivastava, M. Kaur, A. K. Debnath, D. K. Aswal, Y. K. Vijay, S. K. Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Gas sensing properties of pure and surface modified ZnO nanowires towards H2S gas have been investigated. The hydrothermally grown ZnO nanowires network has been selectively modified with various sensitizers using RF sputtering to generate a 2×7 sensor array. After fabrication, the sensor array device has been investigated for its gas sensing properties. The optimal temperature for H2S sensing has been observed to be 300°C. The maximum sensor response of S=52 was obtained for Au 5.7at% modified ZnO NWs with response and recovery times of 22 sec and 52 min, respectively. Concentration profile at 300°C revealed the same pattern with change in amplitude by changing H2S concentration. The sensor array was able to detect H2S both qualitatively and quantitatively based on the graphical pattern and position of the pattern, respectively.

Original languageEnglish
Title of host publicationProceedings of the International Conference on "Advanced Nanomaterials and Emerging Engineering Technologies", ICANMEET 2013
PublisherIEEE Xplore
Pages215-217
Number of pages3
ISBN (Print)9781479913794
DOIs
Publication statusPublished - 30 Oct 2013
Event2013 International Conference on Advanced Nanomaterials and Emerging Engineering Technologies, ICANMEET 2013 - Chennai, India
Duration: 24 Jul 201326 Jul 2013

Conference

Conference2013 International Conference on Advanced Nanomaterials and Emerging Engineering Technologies, ICANMEET 2013
CountryIndia
CityChennai
Period24/07/1326/07/13

Keywords

  • graphical pattern
  • H2S gas
  • multiple sensor array
  • surface modification
  • ZnO nanowires

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    Sharma, P. K., Ramgir, N. S., Goyal, C. P., Datta, N., Srivastava, S., Kaur, M., Debnath, A. K., Aswal, D. K., Vijay, Y. K., & Gupta, S. K. (2013). Effect of sensitizers on H2S sensing properties of ZnO nanowires. In Proceedings of the International Conference on "Advanced Nanomaterials and Emerging Engineering Technologies", ICANMEET 2013 (pp. 215-217). [6609280] IEEE Xplore. https://doi.org/10.1109/ICANMEET.2013.6609280