Single electron charge sensitivity of liquid-gated carbon nanotube transistors.

Autor: Sharf T; Department of Physics, Oregon State University , Corvallis, Oregon 97331-6507, United States., Wang NP, Kevek JW, Brown MA, Wilson H, Heinze S, Minot ED
Jazyk: angličtina
Zdroj: Nano letters [Nano Lett] 2014 Sep 10; Vol. 14 (9), pp. 4925-30. Date of Electronic Publication: 2014 Aug 29.
DOI: 10.1021/nl403983u
Abstrakt: 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.
Databáze: MEDLINE