Soluble carbon nanotube films treated using a hydrogen plasma for uniform electron field emission

被引：15

作者：

Yu, K

Zhu, ZQ

Xu, M

Li, Q

Lu, W

Chen, Q

机构：

[1] E China Normal Univ, Dept Elect Engn, Shanghai 200062, Peoples R China

[2] E China Normal Univ, Analyt Ctr, Shanghai 200062, Peoples R China

[3] Chinese Acad Sci, Phys Tech Inst, State Key Lab Infrared Phys, Shanghai 200083, Peoples R China

[4] Shandong Univ, Sch Phys & Microelet, Jinan 250061, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2004年 / 179卷 / 01期

基金：

中国国家自然科学基金;

关键词：

carbon nanotubes; ion bombardment; field emission;

D O I：

10.1016/S0257-8972(03)00792-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Large-scaled and homogeneous multi-wall carbon nanotube (MWNT) films have been fabricated using the soluble octadecylamine modified multi-wall carbon nanotubes at room temperature by spin-coating method. The characterization, by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and micro-Raman spectroscopy, shows that the surfaces of the carbon nanotubes with hydrogen plasma (HP) treatment are covered with carbon nanoparticles. Field emission tests indicate that the treated MWNT films have a low turn-on emission field of 0.5 V/mum (at 0.1 muA/cm(2)), high emission site density (ESD) of approximately 10(4) cm(-2) and high emission current density of 10 mA/cm(2) (at 7.5V/mum). The conversion mechanism of the treated MWNT structure and the reason of changing the field emission characteristic of the MWNT are discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：63 / 69

页数：7

共 21 条

[1] HIGH-RESOLUTION ELECTRON-MICROSCOPY AND INELASTIC LIGHT-SCATTERING OF PURIFIED MULTISHELLED CARBON NANOTUBES [J].