TITLE

Electronic properties of metal-semiconductor and metal-oxide-semiconductor structures composed of carbon nanotube film on silicon

AUTHOR(S)
Behnam, Ashkan; Radhakrishna, Nischal Arkali; Wu, Zhuangchun; Ural, Ant
PUB. DATE
December 2010
SOURCE
Applied Physics Letters;12/6/2010, Vol. 97 Issue 23, p233105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We fabricate and experimentally characterize the electrical properties of metal-semiconductor (MS) and metal-oxide-semiconductor (MOS) structures where the metal is single-walled carbon nanotube (CNT) film and the semiconductor is a Si substrate. Our results suggest that for the MS devices thermionic emission is the main high-temperature current transport mechanism, while tunneling becomes the dominant mechanism for MOS devices with thermally grown thin oxide layers between the CNT film and Si. In addition, the CNT film workfunction, a key parameter for the performance of CNT film-based devices, is obtained from the capacitance-voltage measurements on the MOS structures.
ACCESSION #
55743045

 

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