Energy exchange during electron emission from carbon nanotubes: Considerations on tip cooling effect and destruction of the emitter

被引：14

作者：

Dionne, M. ^{[1
]}

Coulombe, S. ^{[1
]}

Meunier, J. -L. ^{[1
]}

机构：

[1] McGill Univ, Dept Chem Engn, Montreal, PQ H3A 2B2, Canada

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

carbon nanotubes; cooling; current density; electron field emission; THERMO-FIELD EMISSION; MICROSCOPY;

D O I：

10.1103/PhysRevB.80.085429

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Murphy and Good general theory for electron emission from metal surfaces was used to predict the field emission capabilities of ideal arrays of vertically aligned carbon nanotubes (VACNT). The Nottingham effect was taken into account in order to explain the experimental observation of a localized cooling of the VACNT tips caused by field emission and the destruction of the very short emitters at strong currents. Our model allowed to match the current, voltage, and observed breaking points of individual VACNT reported in two separate experimental studies.

引用

页数：10

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