Selectivity enhancement of tin dioxide gas sensor with polymer membrane

Kenneth K.L. Wong, Zhenan Tang, Johnny K.O. Sin, Philip Ching Ho Chan, Peter W. Cheung, Hiroyuki Hiraoka

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

The application of polymer to enhance the selectivity of tin dioxide gas sensor is presented. Commercial polymer, XU218 of Ciba-Geigy company, is coated on the sensing film of a tin dioxide gas sensor FIGARO TGS842 which was designed to detect methane. The polymer coated sensor is calibrated in a high accuracy testing chamber that is controlled by PC with GPIB and mass flow controllers (MFCs). Three gases, hydrogen, methane, and ammonia, are used to investigate the response of the sensor. It is found that the sensor shows a characteristic change in response to ammonia and almost negligible change in response to hydrogen and methane.
Original languageEnglish
Title of host publicationIEEE Region 10 Annual International Conference, Proceedings/TENCON
PublisherIEEE
Pages179-182
Number of pages4
Publication statusPublished - 1 Dec 1995
Externally publishedYes
EventProceedings of the 1995 IEEE Region 10 International Conference on Microelectronics and VLSI, TENCON'95 - Hong Kong, Hong Kong
Duration: 6 Nov 199510 Nov 1995

Conference

ConferenceProceedings of the 1995 IEEE Region 10 International Conference on Microelectronics and VLSI, TENCON'95
Country/TerritoryHong Kong
CityHong Kong
Period6/11/9510/11/95

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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