Analytical modeling for the electron emission properties of carbon nanotube arrays

被引：7
|
作者：
Nicolaescu, D.
Filip, V.
Takaoka, G. H.
Gotoh, Y.
Ishikawa, J.
机构：
[1] Kyoto Univ, Ion Beam Engn Expt Lab, Nishikyo Ku, Kyoto 6158510, Japan
[2] Univ Bucharest, Fac Phys, Bucharest 76900, Romania
[3] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan
来源：
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2007年 / 25卷 / 02期
关键词：
D O I：
10.1116/1.2402140
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Computations for three-dimensional diode/triode configurations involving regular arrays of carbon nanotubes (CNTs) have been performed. The numerical results have been used to derive analytical relationships for the CNT electric field. These relationships, together with a previously obtained analytical formula giving the CNT electron emission current, allow the computation of the array current as function of various parameters. For diode configurations, an optimum spacing of the CNT array is shown to exist. Triode configurations with regular CNT arrays have highly nonuniform fields, the CNTs placed at the array edge providing more than 90% of the array current. (c) 2007 American Vacuum Society.
引用
收藏
页码：472 / 477
页数：6
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