Diamond coated Si and Mo field emitters: Diamond thickness effect

被引：60

作者：

Zhirnov, VV ^{[1
]}

Choi, WB ^{[1
]}

Cuomo, JJ ^{[1
]}

Hren, JJ ^{[1
]}

机构：

[1] N CAROLINA STATE UNIV,DEPT MAT SCI & ENGN,RALEIGH,NC 27695

来源：

APPLIED SURFACE SCIENCE | 1996年 / 94-5卷

关键词：

D O I：

10.1016/0169-4332(95)00520-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Individual silicon and molybdenum field emitters were coated with synthetic high-pressure diamond particles by dielectrophoresis. A comparison of the field emission characteristics before and after coating showed significant shifts of the I-V curves depending on the thickness of the coatings. A model of emission through the diamond layer is proposed that depends primarily upon tunneling through the Schottky barrier into diamond, while assuming a negligible barrier to emission from the diamond surface into vacuum. This model yields a value of the ''effective'' work function in agreement with experimental measurements.

引用

页码：123 / 128

页数：6

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