Appearance of radial breathing modes in Raman spectra of multi-walled carbon nanotubes upon laser illumination

被引：17

作者：

Rai, Padmnabh ^{[1
]}

Mohapatra, Dipti R. ^{[1
]}

Hazra, K. S. ^{[1
]}

Misra, D. S. ^{[1
]}

Ghatak, Jay ^{[2
]}

Satyam, P. V. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

[2] Inst Phys, Bhubaneswar 751007, Orissa, India

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 455卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2008.02.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Raman spectra of the multi-walled carbon nanotubes are studied with the laser power of 5-20 mW. We observe the Raman bands at similar to 1352, 1581, 1607, and 2700 cm(-1) with 5 mW laser power. As the laser power is increased to 10, 15 and 20 mW, the radial breathing modes (RBMs) of the single wall carbon nanotubes (SWNTs) appear in the range 200 - 610 cm(-1). The diameter corresponding to the highest RBM is similar to 0.37 nm, the lowest reported so far. The RBMs are attributed to the local synthesis of the SWNTs at the top surface of the samples at higher laser power. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：83 / 87

页数：5

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