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Effects of graphene thickness on the electrical properties of carbon nanotube field effect transistors with graphene contacts
- Source :
- Applied Physics Letters. 103:033120
- Publication Year :
- 2013
- Publisher :
- AIP Publishing, 2013.
-
Abstract
- We have studied the effects of the thickness of the graphene on the current-voltage characteristics of the carbon nanotube field effect transistors (CNT-FETs) with graphene contacts. It was shown that the CNT-FETs with thin graphene contacts showed larger drain ON current and transconductance than those of the devices with the thick graphene contacts. The result was explained by the inter-graphene resistance which dominates the contact resistance of the CNT-FETs with the graphene contacts. The inter-graphene resistance was estimated to be 2.2 Ω · cm2 from the extrinsic transconductance of the devices.
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 103
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........7ede3f055875d53e7f4d04f79b8c6303