Bias effect on the growth of carbon nanotips using microwave plasma chemical vapor deposition

被引：43

作者：

Tsai, CL ^{[1
]}

Chen, CF ^{[1
]}

Wu, LK ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30050, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 04期

关键词：

D O I：

10.1063/1.1494839

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Carbon nanotips with a high-aspect ratio were directly grown on Pt films. Carbon nanotips grew up to 5.4 mum length and 64 nm diameter under a -120 V bias. Compared to the hollow structure of carbon nanotubes, transmission electron microscopy images indicate its solid body, which is made of graphite. Carbon nanotips possess good field emission characteristics, that is, a turn-on field of 1.5 V/mum and 761 muA/cm(2) under 2.2 V/mum. The Pt films provide a good conduction path for electron transport from the cathode to the emission site and do not act as catalysts. (C) 2002 American Institute of Physics.

引用

页码：721 / 723

页数：3

共 14 条

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