Effects of palladium coating on field-emission properties of carbon nanofibers in a hydrogen plasma

被引：11

作者：

Waldmann, Ole ^{[1
]}

Persaud, Arun ^{[1
]}

Kapadia, Rehan ^{[2
]}

Takei, Kuniharu ^{[2
]}

Allen, Frances I. ^{[1
,3
]}

Javey, Ali ^{[2
]}

Schenkel, Thomas ^{[1
]}

机构：

[1] EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

来源：

THIN SOLID FILMS | 2013年 / 534卷

关键词：

Field emission; Carbon nanofibers; Metal coating; NANOTUBES;

D O I：

10.1016/j.tsf.2013.02.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results from electron field-emission studies using arrays of patterned carbon nanofiber bundles are reported. We find that the desired field-emission characteristics were not compromised when a protective coating consisting of a layer of palladium of 5 and 30 nm thickness was applied. Following exposure to a hydrogen plasma for several hours we find that the coatings impede plasma damage significantly, whereas the field-emission properties of uncoated nanofibers degraded much more rapidly. The results demonstrate that carbon nanofibers with protective conformal metal coatings can be integrated into harsh plasma environments enabling a range of applications such as field-ionization ion sources and advanced (micro)-plasma discharges. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：488 / 491

页数：4

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