Single Electron Charge Sensitivity of Liquid-Gated Carbon Nanotube Transistors
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- 作者：Tal Sharf ; Neng-Ping Wang ; Joshua W. Kevek ; Morgan A. Brown ; Heather Wilson ; Stefan Heinze ; Ethan D. Minot
- 刊名：Nano Letters
- 出版年：2014
- 出版时间：September 10, 2014
- 年：2014
- 卷：14
- 期：9
- 页码：4925-4930
- 全文大小：324K
- ISSN：1530-6992
文摘
Random telegraph signals corresponding to activated charge traps were observed with liquid-gated CNT FETs. The high signal-to-noise ratio that we observe demonstrates that single electron charge sensing is possible with CNT FETs in liquids at room temperature. We have characterized the gate-voltage dependence of the random telegraph signals and compared to theoretical predictions. The gate-voltage dependence clearly identifies the sign of the activated trapped charge.