Field emission characteristics of carbon nanotube films fabricated by different methods

被引：0

作者：

Guo, Linrui ^{[1
]}

Ye, Xiongying ^{[1
]}

Li, Hua ^{[1
]}

Liu, Yitao ^{[1
]}

Zhou, Zhaoying ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Precis Measurement Technol & Instru, Dept Precis Instruments & Mechanol, Beijing, Peoples R China

来源：

2006 1ST IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS, VOLS 1-3 | 2006年

关键词：

carbon nanotube; field emission; direct growth; post-treatment;

D O I：

10.1109/NEMS.2006.334572

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In order to improve the performance of field emitters nowadays, carbon nanotubes are used instead of conventional materials such as silicon and metals. In this paper, field emission characteristics of three different multi-wall carbon nanotube films have been compared, which are fabricated by different methods, including direct growth, evaporation coating and flow assembly. The field emission current-voltage property of each film has been characterized experimentally, and the electric field enhancement factor has been analyzed using Fowler-Nordheim theory. Moreover, emission stability of each film has been measured too. It can be concluded that the direct-grown vertical multi-wall carbon nanotube array has turn-on field of 0.603V/mu m and current density fluctuation less than 5%, which is much lower than the other films by post-treatment processes.

引用

页码：951 / +

页数：2

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