Extraordinary sensitivity of the electronic structure and properties of single-walled carbon nanotubes to molecular charge-transfer

Voggu, Rakesh ; Rout, Chandra Sekhar ; Franklin, Aaron D. ; Fisher, Timothy S. ; Rao, C. N. R. (2008) Extraordinary sensitivity of the electronic structure and properties of single-walled carbon nanotubes to molecular charge-transfer Journal of Physical Chemistry C, 112 (34). pp. 13053-13056. ISSN 1932-7447

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp805136e

Related URL: http://dx.doi.org/10.1021/jp805136e

Abstract

Interaction of single-walled carbon nanotubes with electron-donor and -acceptor molecules causes significant changes in the electronic and Raman spectra. Electron-donating molecules such as tetrathiafulvalene and aniline cause changes opposite to those caused by electron-withdrawing molecules such as nitrobenzene and tetracyanoethylene. Thus, a proportion of the semiconducting SWNTs becomes metallic on electron donation through molecular charge transfer. Electrical resistivity measurements reveal a systematic variation with electron-donating or -withdrawing power of the interacting molecules.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:40034
Deposited On:21 May 2011 07:00
Last Modified:21 May 2011 07:00

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