Effect of carbon nanotube structural parameters on field emission properties

被引：14

作者：

Feng, YT ^{[1
]}

Deng, SZ ^{[1
]}

Chen, J ^{[1
]}

Xu, NS ^{[1
]}

机构：

[1] Zhongshan Univ, Inst Condensed Matter Phys, Guangdong Province Key Lab Display Mat & Technol, Guangzhou 510275, Peoples R China

来源：

ULTRAMICROSCOPY | 2003年 / 95卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

carbon nanotubes; field emission; chemical vapor deposition;

D O I：

10.1016/S0304-3991(02)00302-9

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Experimental studies were devoted to the effect of structural parameters, i.e., tube diameter and density, on the field electron emission characteristics of carbon nanotubes. Thermal chemical vapor deposition system was employed to synthesize carbon nanotubes. Nanotubes with different diameters and densities were obtained by adjusting the thickness of the iron (Fe) catalyst film. The morphologies of the Fe and carbon nanotube film were characterized by scanning electron microscopy respectively. Further field emission measurement confirmed that the tube diameter and density could significantly affect the electron emission properties of the carbon nanotube. Possible physical reasons for the effect are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：93 / 97

页数：5

共 6 条

[1] Field emission of different oriented carbon nanotubes [J].