Lv Aifeng, Pan Yong, Chi Lifeng
Physikalisches Institut and Center for Nanotechnology (CeNTech), Universität Münster, Wilhelm-Klemm-Str. 10, Münster 48149, Germany.
Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Renai Rd. 199, Suzhou 215123, China.
Sensors (Basel). 2017 Jan 22;17(1):213. doi: 10.3390/s17010213.
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 (Δ). 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.
本综述聚焦于以聚合物为传感层的基于聚合物场效应晶体管（PFET）的气体传感器，该传感层与气体分析物相互作用，从而引起源漏电流的变化（Δ）。根据传感层（可以是半导体聚合物、介电层或导电聚合物栅极）的不同，PFET传感器可分为三种类型。对于每种类型的传感器，我们介绍了传感聚合物的分子结构、气体分析物和传感性能。最重要的是，我们总结了各种分析物 - 聚合物相互作用，这有助于理解PFET传感器中的传感机制，并可为未来传感器的制造提供可能的方法。
