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Anomalous n-type electrical behaviour of Pd-contacted CNTFET fabricated on small-diameter nanotube.

Jejurikar, S and Casterman, D and Pillai, PB and Petrenko, O and De Souza, MM and Tahraoui, A and Durkan, C and Milne, WI (2010) Anomalous n-type electrical behaviour of Pd-contacted CNTFET fabricated on small-diameter nanotube. Nanotechnology, 21. 215202-.

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Abstract

A Pd-contacted dopant-free CNTFET with small-diameter (0.57 nm) carbon nanotube showing an anomalous n-type electrical characteristic is reported for the first time. This observed behaviour is attributed to a carbon nanotube work function higher than (or close to) palladium as well as a large hole-to-electron effective mass ratio of approximately 2.5 predicted by hybridization in small-diameter nanotubes. A variation of the conduction type with temperature is also observed and is attributed to an increase of the palladium work function and decrease of the CNT work function with increasing temperature.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:33
Last Modified: 08 Dec 2014 02:37
DOI: 10.1088/0957-4484/21/21/215202