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

被引：15

作者：

Giulianini, Michele ^{[1
]}

Waclawik, Eric R. ^{[1
]}

Bell, John M. ^{[1
]}

Scarselli, Manuela ^{[2
]}

Castrucci, Paola ^{[2
]}

De Crescenzi, Maurizio ^{[2
]}

Motta, Nunzio ^{[1
]}

机构：

[1] Queensland Univ Technol, Brisbane, Qld 4001, Australia

[2] Univ Roma Tor Vergata, Unita CNISM, Dipartimento Fis, I-00133 Rome, Italy

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 14期

关键词：

WORK-FUNCTIONS;

D O I：

10.1063/1.3241998

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2009 American Institute of Physics. [doi:10.1063/1.3241998]

引用

页数：3

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