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Studies on the thick-film organic vapor sensors based on binary metal oxides

A. K. BATRA1,* , J. R. CURRIE2, M. D. AGGARWAL1, R. B. LAL1, M. E. EDWARDS1, A. VASEASHTA3

Affiliation

  1. Department of Physics, Alabama A & M University, P.O. Box 1268, Normal, Alabama 35762, U.S.A.
  2. NASA-George C. Marshall Space Flight Center, Huntsville, Alabama 35812, U.S.A.
  3. On detail from Nanomaterials Processing and Characterization Laboratories, Graduate Program in Physical Sciences, Marshall University, Huntington, WV 25755, U.S.A

Abstract

Thick film sensors of binary mixtures of metal oxides: e.g. tin dioxide/zinc oxide; tin dioxide/indium oxide; and tin dioxide/tungsten oxide for isopropanol vapor detection were fabricated on alumina substrate via screen printing technique. The tin oxide/tungsten oxide thick films showed superior sensor properties (sensitivity and response time) at lower operating temperature (140°C)..

Keywords

Chemical sensors, Thick films, Electronic materials, Binary metal oxides, 2-isopropanol.

Citation

A. K. BATRA, J. R. CURRIE, M. D. AGGARWAL, R. B. LAL, M. E. EDWARDS, A. VASEASHTA, Studies on the thick-film organic vapor sensors based on binary metal oxides, Optoelectronics and Advanced Materials - Rapid Communications, 3, 2, February 2009, pp.124-126 (2009).

Submitted at: Nov. 7, 2008

Accepted at: Feb. 13, 2009