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Poly(3-hexyl-thiophene) coil-wrapped single wall carbon nanotube investigated by scanning tunneling spectroscopy

Giulianini, Michele, Waclawik, Eric R., Bell, John M., Scarselli, Manuela, Castrucci, Paola, De Crescenzi, Maurizio, & Motta, Nunzio (2009) Poly(3-hexyl-thiophene) coil-wrapped single wall carbon nanotube investigated by scanning tunneling spectroscopy. Applied Physics Letters, 95(14), 143116-1----143116-3.

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Abstract

Scanning Tunneling Spectroscopy was performed on a (15,0) single wall carbon nanotube partially wrapped by Poly(3-hexyl-thiophene). On the bare nanotube section, the local density of states is in good agreement with the theoretical model based on local density approximation and remarkably is not perturbed by the polymer wrapping. On the coiled section, a rectifying current-voltage characteristic has been observed along with the charge transfer from the polymer to the nanotube. The electron transfer from Poly(3-hexyl-thiophene) to metallic nanotube was previously theoretically proposed and contributes to the presence of the Schottky barrier at the interface responsible for the rectifying behavior.

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15 citations in Scopus
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12 citations in Web of Science®

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ID Code: 27871
Item Type: Journal Article
Keywords: STM, STS, P3HT, SINGLE WALL CARBON NANOTUBE
DOI: 10.1063/1.3241998
ISSN: 0003-6951
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700)
Divisions: Past > Schools > Chemistry
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 American Institute of Physics
Deposited On: 12 Oct 2009 10:24
Last Modified: 29 Feb 2012 23:56

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