Enhanced field-emission capacity by density control of a CNT cathode using post-plasma treatment

被引：7
作者：
Choi, Haeyoung [1 ]
Shin, Yun Ji [2 ]
Cha, Seung Il [3 ]
Kang, In Ho [2 ]
Bahng, Wook [2 ]
机构：
[1] Korea Electrotechnol Res Inst, Battery Res Ctr, Changwon Si, Gyeongnam, South Korea
[2] Korea Electrotechnol Res Inst, Power Semicond Res Ctr, Changwon Si, Gyeongnam, South Korea
[3] Korea Electrotechnol Res Inst, Nano Hybrid Technol Res Ctr, Changwon Si, Gyeongnam, South Korea
来源：
SOLID STATE COMMUNICATIONS | 2013年 / 171卷
关键词：
Field emission; Carbon nanotube; Plasma treatment; CARBON NANOTUBES;
D O I：
10.1016/j.ssc.2013.05.018
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effects of hydrogen plasma treatment on surface morphologies and field emission performance of vertically aligned multi-walled carbon nanotubes were investigated. The hydrogen plasma treatment of vertically aligned multi-walled carbon nanotubes induces changing surface morphologies from flat surface to sharp conical shapes according to the plasma treatment time. The morphological changes owing to plasma treatment enhances field emission performance of vertically aligned carbon nanotubes so that the current density and field enhancement factor were considerably improved compared to those of as-grown one. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：50 / 54
页数：5
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