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Open AccessFeature PaperReview

Radio-Frequency/Microwave Gas Sensors Using Conducting Polymer

1
Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Korea
2
Department of Information and Communications Engineering, Sungkyul University, Gyeonggi-Do 14097, Korea
3
Institute of Engineering Research, Yonsei University, Seoul 03722, Korea
4
Department of Physics Education, College of Education, Daegu University, Gyeongsan 38453, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Materials 2020, 13(12), 2859; https://doi.org/10.3390/ma13122859
Received: 22 May 2020 / Revised: 19 June 2020 / Accepted: 23 June 2020 / Published: 25 June 2020
In this review, the advances in radio-frequency (RF) /microwave chemical gas sensors using conducting polymers are discussed. First, the introduction of various conducting polymers is described. Only polyaniline (PANi), polypyrrole (PPy) and poly(3,4-ethylenedioxythiophene) (PEDOT), which are mainly used for gas sensors in RF/microwave region, are focused in this review. Sensing mechanism of the three conducting polymers are presented. And the RF/microwave characteristics and RF/microwave applications of the three conducting polymers are discussed. Moreover, the gas sensors using conducting polymers in RF/microwave frequencies are described. Finally, the the challenges and the prospects of the next generation of the RF/microwave based chemical sensors for wireless applications are proposed. View Full-Text
Keywords: radio-frequency; microwave; conducting polymer; organic material; gas sensor; polyaniline; polypyrrole; poly(3,4-ethylenedioxythiophene) radio-frequency; microwave; conducting polymer; organic material; gas sensor; polyaniline; polypyrrole; poly(3,4-ethylenedioxythiophene)
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MDPI and ACS Style

Jang, C.; Park, J.-K.; Yun, G.-H.; Choi, H.H.; Lee, H.-J.; Yook, J.-G. Radio-Frequency/Microwave Gas Sensors Using Conducting Polymer. Materials 2020, 13, 2859.

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