Field emission from carbon nanotubes; purified single-walled and multi-walled tubes

被引：91

作者：

Saito, Y ^{[1
]}

Hamaguchi, K

Hata, K

Tohji, K

Kasuya, A

Nishina, Y

Uchida, K

Tasaka, Y

Ikazaki, F

Yumura, M

机构：

[1] Mie Univ, Dept Elect & Elect Engn, Tsu, Mie 514, Japan

[2] Tohoku Univ, Dept Geosci & Technol, Sendai, Miyagi 98077, Japan

[3] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 98077, Japan

[4] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 305, Japan

来源：

ULTRAMICROSCOPY | 1998年 / 73卷 / 1-4期

关键词：

field emission microscopy; electron sources; carbon nanotubes;

D O I：

10.1016/S0304-3991(97)00128-9

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Field emission microscopy of single-walled nanotubes (SWNTs) and multi-walled nanotubes (MWNTs) was performed. A bulk bundle (diameter 0.01 -0.1 mm and length 1 -2 mm) of SWNTs and MWNTs, which were obtained after purification processes of carbon soot containing respective nanotubes, was used as an electron emitter. For SWNTs, field emission (FE) originating from individual micro-bundles (with diameter 10 -20 nm) was observed. Each micro-bundle gave only a bright spot without fine structure. For MWNTs, hollow ring patterns were observed since the caps of purified MWNTs used in the present study were open. Current vs, voltage characteristics were also measured by using a probe hole device, and the Fowler-Nordheim plot yielded a straight line in low current regions for both SWNTs and MWNTs. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 6

页数：6

共 15 条

[1] COBALT-CATALYZED GROWTH OF CARBON NANOTUBES WITH SINGLE-ATOMIC-LAYERWALLS [J].