Influence of mobile ions on nanotube based FET devices
Influence of mobile ions on nanotube based FET devices
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DOI：
10.1021/nl025941j
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发表时间：
2003-05-01
期刊：
影响因子：
10.8
通讯作者：
Grüner, G
中科院分区：
文献类型：
--
作者：
Bradley, K;Cumings, J;Grüner, G
Carbon nanotube field-effect transistors often exhibit a hysteresis effect in the gate-voltage dependence. We report devices fabricated with small hysteresis, and demonstrate a method to introduce this effect controllably by coating nanotube devices with charged polymers. In addition, the hysteresis is sensitive to humidity on sub-second time scales, showing promise as a humidity sensor. The polymer charge is related to the threshold shift observed, proving that the induced hysteresis results from ionic motion.
