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      Gas Sensors Based on Conducting Polymers

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          Abstract

          The gas sensors fabricated by using conducting polymers such as polyaniline (PAni), polypyrrole (PPy) and poly (3,4-ethylenedioxythiophene) (PEDOT) as the active layers have been reviewed. This review discusses the sensing mechanism and configurations of the sensors. The factors that affect the performances of the gas sensors are also addressed. The disadvantages of the sensors and a brief prospect in this research field are discussed at the end of the review.

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          Conducting polymers in electronic chemical sensors.

          Jiri Janata, Mira Josowicz (2003)
          Conducting organic polymers have found two main kinds of application in electronics so far: as materials for construction of various devices and as selective layers in chemical sensors. In either case, interaction with ambient gases is critical. It may compromise the performance of a device based on conducting polymers, whereas it is beneficial in a sensor. Conductivity has been the primary property of interest. Work function--related to conductivity, but in principle a different property--has received only scant attention. Our aim here is to discuss the usability of conducting polymers in both types of electronic applications in light of these two parameters.
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            Organic thin-film transistors: A review of recent advances

            C. Dimitrakopoulos, D. J. Mascaro (2001)
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              Synthesis of polyaniline nanofibers by "nanofiber seeding".

              Xinyu Zhang, Warren Goux, Sanjeev Manohar (2004)
              Seeding a conventional chemical oxidative polymerization of aniline with even very small amounts of biological, inorganic, or organic nanofibers (usually <1%) dramatically changes the morphology of the resulting doped electronic polymer polyaniline from nonfibrillar (particulate) to almost exclusively nanofibers. The nanoscale morphology of the original seed template is transcribed almost quantitatively to the bulk precipitate. These findings could have immediate impact in the design and development of high-surface area electronic materials.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Sensors (Basel)
                Journal ID (iso-abbrev): Sensors (Basel)
                Title: Sensors (Basel, Switzerland)
                Publisher: Molecular Diversity Preservation International (MDPI)
                ISSN (Electronic): 1424-8220
                Publication date Collection: March 2007
                Publication date (Electronic): 07 March 2007
                Volume: 7
                Issue: 3
                Pages: 267-307
                Affiliations
                Department of Chemistry and Key Lab of Bio-organic Phosphorus and Chemical Biology of Education Commission of China, Tsinghua University, Beijing 100084, P. R. China E-mail: gshi@ 123456tsinghua.edu.cn , baihua00@ 123456mails.tsinghua.edu.cn .
                Author notes
                [* ] Author to whom correspondence should be addressed.
                Article
                Publisher ID: sensors-07-00267
                DOI: 10.3390/s7030267
                PMC ID: 3756721
                SO-VID: 0dee88dc-e245-4ae6-83db-6ccae4c6c77b
                Copyright © © 2007 by MDPI ( http://www.mdpi.org).
                License:

                Reproduction is permitted for noncommercial purposes.

                History
                Date received : 30 October 2006
                Date accepted : 02 March 2007
                Categories
                Subject: Review

                ScienceOpen disciplines: Biomedical engineering
                Keywords: gas sensor,sensing principle,conducting polymer
                Data availability:
                ScienceOpen disciplines: Biomedical engineering
                Keywords: gas sensor, sensing principle, conducting polymer

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