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Issue 6, 2013
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Rectification direction inversion in a phosphododecamolybdic acid/single-walled carbon nanotube junction

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Abstract

We report the inversion of current rectification direction in a phosphododecamolybdic acid (PMo12)/single-walled carbon nanotube (SWNT) nanoscale junction resulted from a change in the particle size or chirality of the SWNTs. Results of Kelvin probe force microscopy (KPFM) studies demonstrated that the charge distribution of PMo12/SWNT in semiconducting SWNTs was opposite to that of metallic SWNTs, owing to differences in the efficiency of charging from the SWNTs to PMo12. The mechanism of the inversion of rectification direction involves combination of the usual p–n junction and current–voltage (IV) drift induced by the dipole moment at the PMo12/SWNT interface.

Graphical abstract: Rectification direction inversion in a phosphododecamolybdic acid/single-walled carbon nanotube junction

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Supplementary files

Article information


Submitted
12 Sep 2012
Accepted
28 Nov 2012
First published
29 Nov 2012

J. Mater. Chem. C, 2013,1, 1137-1143
Article type
Paper

Rectification direction inversion in a phosphododecamolybdic acid/single-walled carbon nanotube junction

L. Hong, H. Tanaka and T. Ogawa, J. Mater. Chem. C, 2013, 1, 1137
DOI: 10.1039/C2TC00171C

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