Tests in controlled atmosphere on new optical gas sensing layers based on TiO

R. Rella, A. Rizzo, A. Licciulli, P. Siciliano, L. Troisi, L. Valli

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Abstract

Chemical sensors based on surface plasmon resonance (SPR) measurements have been proposed in various applications ranging from biomedical and environmental monitoring to industrial process control. It is widely gaining recognition as a valuable tool to investigate gas sensing interactions. In this work, surface plasmon resonance studies in angular modulation have been used to characterise response in the presence of NO2toxic gas of thin TiO 2 porous films containing different types of metal-phthalocyanines. The hybrid thin films were prepared using sol-gel technique. Low temperature annealing of the films (80 °C) ensured the formation of microporous TiO2backbone and the preservation of phthalocyanine. Optical parameters of the active layers in dry air were calculated by using the SPR measurements and information about their variation in the presence of different concentrations of toxic gas was obtained. © 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)439 - 443
Number of pages5
JournalMaterials Science and Engineering C
Volume22
Issue number2
DOIs
Publication statusPublished - 1 Dec 2002
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Rella, R., Rizzo, A., Licciulli, A., Siciliano, P., Troisi, L., & Valli, L. (2002). Tests in controlled atmosphere on new optical gas sensing layers based on TiO. Materials Science and Engineering C, 22(2), 439 - 443. https://doi.org/10.1016/S0928-4931(02)00193-5