Dynamic growth rate behavior of a carbon nanotube forest characterized by in situ optical growth monitoring

被引：52

作者：

Kim, DH ^{[1
]}

Jang, HS

Kim, CD

Cho, DS

Yang, HS

Kang, HD

Min, BK

Lee, HR

机构：

[1] Kyungpook Natl Univ, Dept Phys Nanophys & Technol Lab, Taegu 702701, South Korea

[2] Korea Basic Sci Inst, Daegu Branch, Taejon, South Korea

[3] Yeungnam Univ, Instrumental Anal Ctr, Kyongsan 712749, South Korea

来源：

NANO LETTERS | 2003年 / 3卷 / 06期

关键词：

D O I：

10.1021/nl034212g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We characterize the dynamic growth rate behavior of a carbon nanotube (CNT) forest grown by means of optical interference phenomena. The CNT growth rate increased with an increase in CNT length at the initial stage and became stabilized after the CNT length was about 2 mum. Then the growth rate started to decelerate, passing the critical growth length in an almost linear manner. The termination length of the carbon nanotube was also precisely estimated by fitting the data of growth rate of carbon nanotubes to time. It was found that the CNTs show a transition from straight to curly nanotubes that is related to the decrease in the growth rate. The use of an in situ optical monitoring method has made possible the delicate length control of carbon nanotubes independent of the growth rate.

引用

页码：863 / 865

页数：3

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