Field emission from cleaved diamond fibers

被引：4

作者：

Glesener, JW ^{[1
]}

Lin, HB ^{[1
]}

Morrish, AA ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

来源：

THIN SOLID FILMS | 1997年 / 308卷

关键词：

field emission; cleaved diamond fibers; power spectral density;

D O I：

10.1016/S0040-6090(97)00413-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diamond fibers 100-200 mu m in diameter were investigated as electron emitters. Uniform, straight boron doped fibers were grown on tungsten and sapphire fiber cores. The field emitting surface was created by mechanically cleaving the polycrystalline fiber perpendicular to the fiber axis, a procedure in which it was assumed the necessary morphology would be present for field emission. Other than cleaving, no other special surface or bulk treatments were employed. Voltage dependence and noise power spectral density (PSD) measurements were carried out on the field emission current. A subset of the diamond coated sapphire fibers exhibited electron emission at a factor of 5 reduction in the applied field as compared to the tungsten core fibers. Within experimental error, the PSD exhibited a f(-1.5) dependence on frequency. (C) 1997 Elsevier Science S.A.

引用

页码：204 / 208

页数：5

共 17 条

[1] CARBON-FIBER FIELD EMITTER [J].