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M. Kaur, D. K. Aswal and J. V. Yakhmi, “Chemiresistor Gas Sensors: Materials, Mechanisms and Fabrication,” In: D. K. Aswal and S. K. Gupta, Eds., Science and Technology of Chemiresistor Gas Sensors, Nova Science Publisher, New York, 2007, pp. 33-93.

has been cited by the following article:

• TITLE: Comparative H2S Sensing Characteristics of Fe2O3: Thin Film vs. Bulk

  AUTHORS: Vishal Balouria, Ajay Singh, Niranjan Suryakant Ramgir, Anil Krishan Debnath, Aman Mahajan, Ratish Kumar Bedi, Dinesh Kumar Aswal, Shiv Kumar Gupta

  KEYWORDS: Fe2O3; Thin Film; Pellets; H2S Sensor

  JOURNAL NAME: Soft Nanoscience Letters, Vol.3 No.4A, December 4, 2013

  ABSTRACT: Comparative investigations of gas sensing characteristics of Fe2O3 in both thin film as well as bulk forms have been performed. Thin film sensors were realized by first depositing Fe films using electron-beam evaporation followed by thermal oxidation. Bulk sensors in the form of pellets were prepared by cold pressing commercial Fe2O3 powder with subsequent sintering. Both thin film and bulk Fe2O3 sensors exhibited a selective and reversible response characteristics towards H2S with maximum response at an operating temperature of 250°C and 200°C, respectively. A negligible response towards other interfering gases was observed. Thin film sensors exhibited an enhanced response in comparison to that of pellets.