Fluorescence spectroscopy of single-walled carbon nanotubes in aqueous suspension

被引:88
作者
Weisman, RB
Bachilo, SM
Tsyboulski, D
机构
[1] Rice Univ, Dept Chem, Ctr Nanoscale Sci & Technol, Houston, TX 77005 USA
[2] Rice Univ, Ctr Biol & Environm Nanotechnol, Houston, TX 77005 USA
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2004年 / 78卷 / 08期
关键词
D O I
10.1007/s00339-003-2461-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Optical studies of single-walled carbon nanotubes have advanced greatly through the recent discovery of near-infrared band gap photoluminescence from single-walled carbon nanotubes (SWNT) isolated in aqueous surfactant suspensions. This fluorescence emission has enabled the detection of many distinct optical transitions and their assignment to specific (n,m) semiconducting species of SWNT. The resulting set of precise transition energies presents a challenge to current theoretical models of nanotube electronic structure and a guide to nanotube researchers using resonance Raman spectroscopy. In the near future, structure-resolved fluorimetry should prove useful for revealing the quantitative (n,m) composition of mixed SWNT samples through sensitive, rapid, and nondestructive measurements. It will also permit detailed studies of many physical and chemical processes that vary with nanotube structure.
引用
收藏
页码:1111 / 1116
页数:6
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