Polymer functionalized piezoelectric-FET as humidity/chemical nanosensors
Polymer functionalized piezoelectric-FET as humidity/chemical nanosensors
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DOI：
10.1063/1.2748097
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发表时间：
2007-06
影响因子：
4
通讯作者：
C. Lao;Q. Kuang;Zhong Lin Wang;Myung-Chul Park;Yulin Deng
中科院分区：
文献类型：
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作者：
C. Lao;Q. Kuang;Zhong Lin Wang;Myung-Chul Park;Yulin Deng
利用静电自组装技术，在氧化锌纳米带(NB)的一侧表面涂覆一层多层聚合物，实现了一种基于压电场效应晶体管(PE-FET)的湿度/化学纳米传感器。PE-FET的工作原理依赖于聚合物的自收缩/膨胀，这在压电NB中建立了一个应变，并在NB上诱导了作为栅极电压的NB的电位降，以控制流经NB的电流。PE-FET对涂层聚合物相变的响应也得到了证实。该装置是纳米电子学的一个组件。
By coating one side of the surface of a ZnO nanobelt (NB) with multilayer polymers using an electrostatic self-assembling process, a humidity/chemical nanosensor based on piezoelectric field effect transistor (PE-FET) is demonstrated. The working principle of the PE-FET relies on the self-contraction/expansion of the polymer, which builds up a strain in the piezoelectric NB and induces a potential drop across the NB that serves as the gate voltage for controlling the current flowing through the NB. The response of PE-FET to the phase transition of the coating polymer was also demonstrated. The device is a component for nanopiezotronics.