High-current-density field emission from multiwalled carbon nanotubes by chemical-vapor deposition with effective aging treatment

被引：8

作者：

Mu, Hui ^{[1
]}

Zhang, Xiaobing ^{[1
]}

Lei, Wei ^{[1
]}

Lou, Chaogang ^{[1
]}

Wang, Qilong ^{[1
]}

Yin, Xiaowei ^{[1
]}

机构：

[1] SE Univ, Dept Elect Engn, Nanjing 210096, Jiangsu, Peoples R China

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2007年 / 25卷 / 02期

关键词：

D O I：

10.1116/1.2717199

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：

Carbon nanotubes have been grown on silicon substrates coated with nickel-catalyst films by chemical-vapor deposition using mixtures of acetylene and nitrogen. An effective aging treatment was carried out before the field-emission measurement of carbon-nanotube samples. The results show that the turn-on field is 1.8 V/mu m at 2 mu A emission current and that the highest emission current of 13 mA at the electrical field of 23 V/mu m. This corresponds to the field-emission current density of 414 mA/cm(2). Some discussions about the long growing time of carbon nanotubes, the aging process, and high-current field emission are given. (c) 2007 American Vacuum Society.

引用

页码：583 / 585

页数：3

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