Electron emission properties of carbon nanotubes

被引：41

作者：

Hirakawa, N ^{[1
]}

Sonoda, S ^{[1
]}

Tanaka, C ^{[1
]}

Murakami, H ^{[1
]}

Yamakawa, H ^{[1
]}

机构：

[1] ULVAC Japan Co Ltd, Tsukuba, Ibaraki 3002635, Japan

来源：

APPLIED SURFACE SCIENCE | 2001年 / 169卷

关键词：

carbon nanotubes; field emission; microwave plasma CVD; Fowler-Nordheim (F-N) plot; selectively growth;

D O I：

10.1016/S0169-4332(00)00808-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

We report on the field emission properties of carbon nanotubes, focusing on current density versus electric field (J-F) characteristics and the spacing between the emitter and collector. We grew carbon nanotubes on SUS304, nickel, Inconel-600, and Invar-42 substrates using plasma-enhanced chemical vapor deposition, using methane gas as the carbon source and hydrogen gas as the catalyst and dilution gas. We found that nanotubes grew fastest on Invar-42. Nanotubes were distributed from 50 to 100 nm in diameter and from 1 to 30 mum long. Onset field of the field emission was 0.7 V/mum and the current density was 1 mA/cm(2) at an electric field of 3.0 V/mum. A Fowler-Nordheim plot was made. Field enhancement factor beta and emission area cc were calculated and compared between substrates. Using nickel on quartz glass, carbon nanotubes were selectively fabricated on metal lines on quartz glass. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：662 / 665

页数：4

共 27 条

[1]

High H2 uptake by alkali-doped carbon nanotubes under ambient pressure and moderate temperatures [J].