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Sensors 2017, 17(1), 213; doi:10.3390/s17010213

Gas Sensors Based on Polymer Field-Effect Transistors

1
,
1
and
1,2,*
1
Physikalisches Institut and Center for Nanotechnology (CeNTech), Universität Münster, Wilhelm-Klemm-Str. 10, Münster 48149, Germany
2
Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Renai Rd. 199, Suzhou 215123, China
*
Author to whom correspondence should be addressed.
Academic Editors: Eduard Llobet and Stella Vallejos
Received: 29 November 2016 / Revised: 2 January 2017 / Accepted: 4 January 2017 / Published: 22 January 2017
(This article belongs to the Special Issue Gas Nanosensors)
View Full-Text   |   Download PDF [2601 KB, uploaded 22 January 2017]   |  

Abstract

This review focuses on polymer field-effect transistor (PFET) based gas sensor with polymer as the sensing layer, which interacts with gas analyte and thus induces the change of source-drain current (ΔISD). Dependent on the sensing layer which can be semiconducting polymer, dielectric layer or conducting polymer gate, the PFET sensors can be subdivided into three types. For each type of sensor, we present the molecular structure of sensing polymer, the gas analyte and the sensing performance. Most importantly, we summarize various analyte–polymer interactions, which help to understand the sensing mechanism in the PFET sensors and can provide possible approaches for the sensor fabrication in the future. View Full-Text
Keywords: OFETs; sensor; gas analyte; polymer; sensing mechanism OFETs; sensor; gas analyte; polymer; sensing mechanism
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lv, A.; Pan, Y.; Chi, L. Gas Sensors Based on Polymer Field-Effect Transistors. Sensors 2017, 17, 213.

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