Large-scale well aligned carbon nitride nanotube films: Low temperature growth and electron field emission

被引：78

作者：

Zhong, DY ^{[1
]}

Liu, S ^{[1
]}

Zhang, GY ^{[1
]}

Wang, EG ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, State Key Lab Surface Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 89卷 / 11期

关键词：

D O I：

10.1063/1.1370114

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Large-scale well aligned carbon nitride nanotube films (6 cm in diameter), which are easily processed and show potential for nanomanipulation, have been synthesized by microwave plasma enhanced chemical vapor deposition at a relatively low temperature of 550 degreesC. The characterization, using transmission electron microscopy and electron energy loss spectroscopy, shows that the nanotubes are polymerized by nanobells with nitrogen concentration of 10%. We propose a push-out growth mechanism for the formation of the special polymerized nanobell structure. A turn-on field of electron emission as low as 0.8 V/mum is obtained. Fowler-Nordheim, consisting of two straight lines with a gentle slope at low field and a steep one at relatively high field, are interpreted based on a top side emission mechanism related to the nanobell structures. No current saturation is found in the films. (C) 2001 American Institute of Physics.

引用

页码：5939 / 5943

页数：5

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