Field emission properties and surface structure of diamond and nano-diamond/carbon (NDC) films

被引：0

作者：

Eguchi, K ^{[1
]}

Jiang, N ^{[1
]}

Noguchi, S ^{[1
]}

Inaoka, T ^{[1
]}

Shintani, Y ^{[1
]}

机构：

[1] Univ Tokushima, Dept Elect & Elect Engn, Tokushima 7708506, Japan

来源：

NEW DIAMOND AND FRONTIER CARBON TECHNOLOGY | 2002年 / 12卷 / 03期

关键词：

diamond; NDC; field emission; surface structure; MPCVD;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The field emission properties of diamond and nano-diamond/carbon (NDC) films fabricated by the microwave plasma chemical deposition (MPCVD) method have been characterized. Immediately prior to the field emission measurement, the samples were treated by hydrogen plasma for 5 min to realize hydrogen termination and remove any possible contamination. It is found that compared with the diamond films, the NDC films present better field emission features. Moreover, for the NDC films, with the increase of the methane concentration in the synthesis processes, the field emission threshold decreases rapidly. Transmission electron microscopy (TEM) images clearly reveal that hydrogen plasma treatment considerably roughens the film surface. It is believed that such coarsened surfaces will be beneficial for the enhancement of electron emission efficiency.

引用

页码：153 / 156

页数：4

共 6 条

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