Transition of field emission to space-charge-limited emission in a nanogap

被引：29
|
作者：
Koh, W. S.
Ang, L. K. [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Inst High Performance Comp, Singapore 117528, Singapore
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 18期
关键词：
D O I：
10.1063/1.2378405
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This letter presents a quantum model showing the transition of electron field emission at low current to space-charge-limited emission at high current in a nanogap. It is found that the classical transition models are no longer valid when the electron de Broglie wavelength is comparable to the gap spacing. The transition from the Fowler-Nordheim law at low current to the quantum Child-Langmuir law at high current in a nanogap is calculated for various conditions. (c) 2006 American Institute of Physics.
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