Journal
TALANTA
Volume 77, Issue 5, Pages 1590-1596Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2008.09.054
Keywords
Ammonia sensor; Polymer sensitive layer; Optical transducer; Absorption variation measurement
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Funding
- CER Micro-Cap-Ouest
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Polyaniline (PANI)/glycidyl ether of bisphenol A (SU-8) composite film is elaborated in order to detect ammonia gas. These composite films are characterized by Ultraviolet-visible (UV-vis) spectroscopy, Fourier transformed infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The sensitivity to ammonia is measured by optical absorption changes. The ammonia sensing properties of PANI/SU-8 composite films are studied, and then are compared to pure PANI films elaborated by chemical way. Experimental results show that the PANI/SU-8 optical sensor has Simultaneously a rapid response to ammonia gas and regenerates easily, that is advantageous compared to pure PANI films. (C) 2008 Elsevier B.V. All rights reserved.
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