Field emission properties of N2 and Ar plasma-treated multi-wall carbon nanotubes

被引：84

作者：

Gohel, A

Chin, KC

Zhu, YW

Sow, CH

Wee, ATS

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[2] NUS Nanosci & Nanotechnol Initiat, Singapore 117542, Singapore

来源：

CARBON | 2005年 / 43卷 / 12期

关键词：

carbon nanotubes; plasma treatment; X-ray photoelectron spectroscopy; scanning electron microscopy; Raman spectroscopy;

D O I：

10.1016/j.carbon.2005.05.003

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：

We modify multi-wall carbon nanotubes (MWCNTs) by plasma treatment with N-2 and Ar for varying durations and measure their field emission characteristics. The N-2 treated MWCNTs showed significant improvement in field emission properties, while the Ar treated MWCNTs displayed poorer field emission characteristics compared to untreated MWCNTs. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Raman spectroscopy and work function measurements are used to investigate the field emission mechanisms after plasma treatments. (C) 2005 Elsevier Ltd. All rights reserved.

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收藏

页码：2530 / 2535

页数：6

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