Chromatographic Length Separation and Photoluminescence Study on DNA-Wrapped Single-Wall and Double-Wall Carbon Nanotubes

被引：11

作者：

Asada, Yuki

Sugai, Toshiki

Kitaura, Ryo

Shinohara, Hisanori ^{[1
]}

机构：

[1] Nagoya Univ, Dept Chem, Nagoya, Aichi 4648602, Japan

来源：

JOURNAL OF NANOMATERIALS | 2009年 / 2009卷

关键词：

SPECTROSCOPIC CHARACTERIZATION; FLUORESCENCE; DIAMETER;

D O I：

10.1155/2009/257892

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Water-soluble DNA-wrapped single-wall and double-wall carbon nanotubes (DNA-SWNTs, DNA-DWNTs) have been well separated by length incorporating size-exclusion high-performance liquid chromatography (HPLC). The morphology and electronic properties of the size- (length-) separated DNA-SWNTs and -DWNTs are investigated by atomic force microscopy (AFM), photoluminescence (PL), and Raman spectroscopy. By using length-separated DNA-SWNTs and -DWNTs, we have found that PL intensity of the DNA-SWNTs varies sensitively depending not only on the chirality (or diameter) but more importantly on the length of the hybrids. Copyright (C) 2009 Yuki Asada et al.

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页数：8

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