Comparison of Optical Ammonia-Sensing Properties of Conducting Polymer Complexes with Polysulfonic Acids

Thin films of conducting polymer complexes with polysulfonic acids of various structures were electrochemically deposited onto transparent FTO electrodes. The behavior of the polymer-based optical ammonia vapor sensors in response to various concentrations of ammonia vapors, ranging from 5 to 135 pp...

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Bibliographic Details
Main Authors: Oxana Gribkova, Varvara Kabanova, Vladimir Tverskoy, Alexander Nekrasov
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Chemosensors
Subjects:
Online Access:https://www.mdpi.com/2227-9040/9/8/206
Description
Summary:Thin films of conducting polymer complexes with polysulfonic acids of various structures were electrochemically deposited onto transparent FTO electrodes. The behavior of the polymer-based optical ammonia vapor sensors in response to various concentrations of ammonia vapors, ranging from 5 to 135 ppm, was investigated, including the response time and response amplitude. It was found that the nature of the conducting polymers (poly (3,4-ethylenedioxythiophene), polypyrrole, polyaniline), as well as the structure of the polyacids, affected the sensing performance of the obtained complexes.
ISSN:2227-9040