Reflectance spectra of individual single-walled carbon nanotubes

被引：7
|
作者：
Zeng, Hualing [1 ]
Jiao, Liying [2 ]
Xian, Xiaojun [2 ]
Qin, Xingcai [2 ]
Liu, Zhongfan [2 ]
Cui, Xiaodong [1 ,3 ]
机构：
[1] Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
[2] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
[3] Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China
来源：
NANOTECHNOLOGY | 2008年 / 19卷 / 04期
关键词：
D O I：
10.1088/0957-4484/19/04/045708
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report backscattering spectroscopic measurements on individual single-walled carbon nanotubes (SWNTs). The reflectance spectra show geometry-dependent resonant peaks corresponding to optical transitions between Van Hove singularities in the SWNTs' joint density of states. All nanotubes display certain colours as their reflectance spectra demonstrate strong energy dependence. This approach was proved to be an effective tool for probing the geometric structures and optical properties of individual SWNTs.
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页数：4
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