Effects of thermal annealing on noise property and temperature coefficient of resistance of single-walled carbon nanotube films

被引：43

作者：

Lu, Rongtao ^{[1
]}

Xu, Guowei ^{[1
]}

Wu, Judy Z. ^{[1
]}

机构：

[1] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 21期

基金：

美国国家科学基金会;

关键词：

1; f noise; annealing; carbon nanotubes; electrical conductivity; thin films;

D O I：

10.1063/1.3035848

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of thermal annealing on the electrical transport properties of purified and COOH-functionalized single-walled carbon nanotube (SWCNT) films has been investigated and the correlation between the noise property and temperature coefficient of resistance (TCR) has been derived. Thermal annealing has been found highly efficient to improve both noise and TCR properties of the SWCNT films, which is important to applications of SWCNT bolometers. While the improvement may be attributed mainly to the enhanced intertube coupling in the purified SWCNT films, a combined change in both intratube and intertube charge transport is responsible in the case of COOH-functionalized SWCNT films.

引用

页数：3

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