The feature of the Breit-Wigner-Fano Raman line in DNA-wrapped single-wall carbon nanotubes

被引：36

作者：

Kawamoto, H. ^{[1
]}

Uchida, T. ^{[1
]}

Kojima, K. ^{[1
]}

Tachibana, M. ^{[1
]}

机构：

[1] Yokohama City Univ, Grad Sch Integrated Sci, Kanazawa Ku, Yokohama, Kanagawa 2360027, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2006年 / 99卷 / 09期

关键词：

D O I：

10.1063/1.2196249

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Breit-Wigner-Fano (BWF) Raman line in DNA-wrapped single-wall carbon nanotubes (SWNTs) was investigated. For as-produced HiPco SWNT bundles, the asymmetric profile of BWF line is clearly observed with an excitation energy of 2.33 eV. The asymmetric feature almost disappears in isolated HiPco SWNTs by DNA wrapping in aqueous solution. Such a significant change provides evidence that the asymmetric feature of BWF line is attributed to the bundling effect of SWNTs. In addition, the asymmetric feature of BWF line strongly appears even when the DNA-wrapped SWNTs are exposed to air. This means that the rebundling in the DNA-wrapped SWNTs can occur due to drying. (C) 2006 American Institute of Physics.

引用

页数：4

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