Effects of intense laser irradiation on Raman intensity features of carbon nanotubes

被引：61

作者：

Zhang, L

Li, HD

Yue, KT

Zhang, SL ^{[1
]}

Wu, XH

Zi, J

Shi, ZJ

Gu, ZN

机构：

[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[2] Fudan Univ, Surface Phys Lab, Shanghai 200433, Peoples R China

[3] Peking Univ, Dept Chem, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.65.073401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of intense laser irradiation on the features of Raman intensity of carbon nanotubes (CNT's) has been examined. The intensity of the D band decreases and the relative intensity between the G peaks changes with increasing laser power density (LPD) and remain unchanged with subsequent decrease in LPD. This behavior is different from the reversible variation of the G band frequency in the same process of power increase and subsequent decrease. It has been demonstrated that such irreversible change in intensity features originates from sample purification. This result suggests a simple and fast CNT purification method using intense laser irradiation.

引用

页码：1 / 4

页数：4

共 18 条

[1]

DRESSELHAUS MS, 2000, P 17 INT C RAM SPECT, P9

[2] Experimental observation of individual single-wall nanotube species by Raman microscopy [J].