Density Enhancement of Aligned Single-Walled Carbon Nanotube Thin Films on Quartz Substrates by Sulfur-Assisted Synthesis

被引：48

作者：

McNicholas, Thomas P. ^{[1
]}

Ding, Lei ^{[1
]}

Yuan, Dongning ^{[1
]}

Liu, Jie ^{[1
]}

机构：

[1] Duke Univ, Dept Chem, Durham, NC 27708 USA

来源：

NANO LETTERS | 2009年 / 9卷 / 10期

关键词：

GROWTH; ARRAYS;

D O I：

10.1021/nl901890x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The density of the aligned single-walled carbon nanotubes (SWNTs) grown on quartz substrates is an important factor for the performance of fabricated electronic devices. It was discovered that the addition of a sulfur-containing compound (thiophene) to the reaction mixture improved the density of SWNTs by a factor of 2 or more, from similar to 2-4 SWNTs/mu m to 6-8 SWNTs/mu m under similar growth conditions. It was also observed that along with the increase in nanotube density, the cleanness of the samples Improved as well. These effects were demonstrated over a large range of growth conditions, indicating that the addition sulfur makes the growth processes more favorable for the nucleation and growth of aligned SWNTs.

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收藏

页码：3646 / 3650

页数：5

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