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A new surface electron-emission mechanism in diamond cathodes

被引：230
作者：
Geis, MW
Efremow, NN
Krohn, KE
Twichell, JC
Lyszczarz, TM
Kalish, R
Greer, JA
Tabat, MD
机构：
[1] MIT, Lincoln Lab, Lexington, MA 02173 USA
[2] Technion Israel Inst Technol, IL-32000 Haifa, Israel
[3] PVD Prod, Bedford, MA 02173 USA
来源：
NATURE | 1998年 / 393卷 / 6684期
关键词：
D O I：
10.1038/30900
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
An electron-emission mechanism for cold cathodes is described based on the enhancement of electric fields at metal-diamond-vacuum triple junctions. Unlike conventional mechanisms, in which electrons tunnel from a metal or semiconductor directly into vacuum, the electrons here tunnel from a metal into diamond surface states, where they are accelerated to energies sufficient to be ejected into vacuum. Diamond cathodes designed to optimize this mechanism exhibit some of the lowest operational voltages achieved so far.
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收藏
页码：431 / 435
页数：5
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