Carbon nanotube/polythiophene chemiresistive sensors for chemical warfare agents
Carbon nanotube/polythiophene chemiresistive sensors for chemical warfare agents
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DOI：
10.1021/ja710795k
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发表时间：
2008-04-23
影响因子：
15
通讯作者：
Swager, Timothy M.
中科院分区：
文献类型：
--
作者：
Wang, Fei;Gu, Hongwei;Swager, Timothy M.
我们报道了一种化学电阻器，已通过简单的旋转浇铸技术从稳定的CNT分散在六氟异丙醇官能化聚噻吩。该传感器对神经刺激剂DMMP具有很高的灵敏度和选择性。一系列的传感研究，包括场效应调查，电极钝化，和荧光测量，表明电荷转移的组合机制，引入散射网站，和聚合物的构型变化。
We report a chemiresistor that has been fabricated via simple spin-casting technique from stable CNT dispersion in hexafluoroisopropanol functionalized polythiophene. The sensor has shown high sensitivity and selectivity for a nerve reagent stimulant DMMP. A series of sensing studies, including field effect investigation, electrode passivation, and fluorescent measurement, indicate a combinative mechanism of charge transfer, introduction of scattering sites, and a configurational change of the polymer.