Modification in Surface Morphology and Enhanced Field Emission Properties of Pristine Carbon Nanotubes by Introducing Nitrogen Gas

被引：3
|
作者：
Kaushik, Vishakha [1 ]
Sharma, Himani [1 ]
Shukla, A. K. [1 ]
Vankar, V. D. [1 ]
机构：
[1] IITD, Dept Phys, Thin Film Lab, New Delhi 110016, India
来源：
INDIAN VACUUM SOCIETY SYMPOSIUM ON THIN FILMS: SCIENCE & TECHNOLOGY | 2012年 / 1451卷
关键词：
Multi-walled carbon nanotubes; Chemical Vapor Deposition; Electron Spectroscopy; Field Emission; VAPOR;
D O I：
10.1063/1.4732396
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Bamboo shaped multiwalled carbon nanotubes (MWCNTs) were grown using iron (Fe) catalyst over aluminum (Al) film by microwave plasma enhanced chemical vapour deposition. The effect of nitrogen plasma in the modification of the microstructure has been investigated. Field emission from pristine MWCNTs and bamboo shaped MWCNTs has been investigated. The turn-on field for bamboo shaped MWCNTs was (1.17 V/mu m) which is smaller as compared to pristine MWCNTs (1.42 V/um) and thus shows better emission properties.
引用
收藏
页码：148 / 150
页数：3
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