In situ imaging of field emission from individual carbon nanotubes and their structural damage

被引：172

作者：

Wang, ZL ^{[1
]}

Gao, RP

de Heer, WA

Poncharal, P

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Ctr Nanosci & Nanotechnol, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 05期

关键词：

D O I：

10.1063/1.1446994

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Field emission of individual carbon nanotubes was observed by in situ transmission electron microscopy. A fluctuation in emission current was due to a variation in distance between the nanotube tip and the counter electrode owing to a "head-shaking" effect of the nanotube during field emission. Strong field-induced structural damage of a nanotube occurs in two ways: a piece-by-piece and segment-by-segment pilling process of the graphitic layers, and a concentrical layer-by-layer stripping process. The former is believed owing to a strong electrostatic force, and the latter is likely due to heating produced by emission current that flowed through the most outer graphitic layers. (C) 2002 American Institute of Physics.

引用

页码：856 / 858

页数：3

共 16 条

[1] Synthesis and field-emission behavior of highly oriented boron carbonitride nanofibers [J].

Bai, XD ;

Guo, JD ;

Yu, J ;

Wang, EG ;

Yuan, J ;

Zhou, WZ .

APPLIED PHYSICS LETTERS, 2000, 76 (18) :2624-2626

[2]

COLLINS PG, 2001, NANO LETT, V1, P453

[3] Materials - Peeling and sharpening multiwall nanotubes [J].

Cumings, J ;

Collins, PG ;

Zettl, A .

NATURE, 2000, 406 (6796) :586-586

[4] ALIGNED CARBON NANOTUBE FILMS - PRODUCTION AND OPTICAL AND ELECTRONIC-PROPERTIES [J].

DEHEER, WA ;

BACSA, WS ;

CHATELAIN, A ;

GERFIN, T ;

HUMPHREYBAKER, R ;

FORRO, L ;

UGARTE, D .

SCIENCE, 1995, 268 (5212) :845-847

[5] Self-oriented regular arrays of carbon nanotubes and their field emission properties [J].

Fan, SS ;

Chapline, MG ;

Franklin, NR ;

Tombler, TW ;

Cassell, AM ;

Dai, HJ .

SCIENCE, 1999, 283 (5401) :512-514

[6] Electron emission in intense electric fields [J].

Fowler, RH ;

Nordheim, L .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1928, 119 (781) :173-181

[7] Carbon nanotube quantum resistors [J].

Frank, S ;

Poncharal, P ;

Wang, ZL ;

de Heer, WA .

SCIENCE, 1998, 280 (5370) :1744-1746

[8] Work function at the tips of multiwalled carbon nanotubes [J].

Gao, RP ;

Pan, ZW ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2001, 78 (12) :1757-1759

[9] Large-scale synthesis of aligned carbon nanotubes [J].

Li, WZ ;

Xie, SS ;

Qian, LX ;

Chang, BH ;

Zou, BS ;

Zhou, WY ;

Zhao, RA ;

Wang, G .

SCIENCE, 1996, 274 (5293) :1701-1703

[10] Polymerized carbon nanobells and their field-emission properties [J].

Ma, XC ;

Wang, EG ;

Zhou, WZ ;

Jefferson, DA ;

Chen, J ;

Deng, SZ ;

Xu, NS ;

Yuan, J .

APPLIED PHYSICS LETTERS, 1999, 75 (20) :3105-3107

← 1 2 →