Array based carbon black-polymer composite vapor detectors for detection of DNT in environments containing complex analyte mixtures

Shawn M. Briglin, Michael S. Freund, Brian C. Sisk, Nathan S Lewis

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

5 Citations (Scopus)

Abstract

Thin films of carbon black-organic polymer composites have been deposited across two metallic leads, with sorption of vapors producing swelling-induced resistance changes of the detector films. To identify and classify vapors, arrays of such vapor sensing elements have been constructed in which each element of the array contains a different polymer as the insulating phase and a common conductor, carbon black, as the conducting phase. The differing gas-solid partition coefficients for the various polymers of the detector array produce a pattern of differential resistance changes that is used to classify vapors and vapor mixtures. The performance of this detector array system towards 2,4-dinitrotoluene, the predominant signature in the vapor phase above land mines, in the presence high concentrations of water or of acetone (as a selected volatile organic carbon vapor), has been evaluated.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsA.C. Dubey, J.F. Harvey, J. Thomas Broach, V. George
Pages912-921
Number of pages10
Volume4394
Edition2
DOIs
Publication statusPublished - 2001
EventDetection and Remediation Technologies for Mines and Minelike Targets VI - Orlando, FL, United States
Duration: Apr 16 2001Apr 20 2001

Other

OtherDetection and Remediation Technologies for Mines and Minelike Targets VI
CountryUnited States
CityOrlando, FL
Period4/16/014/20/01

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Keywords

  • 2,4-dinitrotoluene
  • Carbon black
  • Land mine signatures
  • Vapor detectors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Briglin, S. M., Freund, M. S., Sisk, B. C., & Lewis, N. S. (2001). Array based carbon black-polymer composite vapor detectors for detection of DNT in environments containing complex analyte mixtures. In A. C. Dubey, J. F. Harvey, J. Thomas Broach, & V. George (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (2 ed., Vol. 4394, pp. 912-921) https://doi.org/10.1117/12.445419