Far-infrared to visible optical conductivity of single-wall carbon nanotubes

被引：26

作者：

Ugawa, A. ^{[1
]}

Hwang, J. ^{[1
]}

Gommans, H. H. ^{[1
]}

Tashiro, H. ^{[1
]}

Rinzler, A. G. ^{[1
]}

Tanner, D. B. ^{[1
]}

机构：

[1] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

来源：

CURRENT APPLIED PHYSICS | 2001年 / 1卷 / 01期

基金：

美国国家科学基金会;

关键词：

Nanotubes; Infrared; Fullerenes;

D O I：

10.1016/S1567-1739(00)00009-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The reflectance of unoriented single-wall carbon nanotube films has been measured over a wide wavelength range (far-IR-UV). The results are consistent with the film being a mixture of conducting (armchair), small bandgap (n m, mod 3) and semiconducting nanotubes. The optical conductivity shows peaks corresponding to transitions between density-of-states peaks of these tubes, at energy locations consistent with 1.4 nm diameter tubes. In addition optical absorption spectroscopy of aligned single-wall carbon nanotubes shows that the optical transitions are well-aligned along the tube axis. This behavior is consistent with polarized resonant Raman and electronic structure calculations. (c) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：45 / 49

页数：5

共 21 条

[1] AHARONOV-BOHM EFFECT IN CARBON NANOTUBES [J].