Very Stable Large Current Density Printed Carbon Nanotube Field-Emission Cathode Applied in Electron Gun

被引：0
|
作者：
Yu, Cairu [1 ]
Liu, Jing [1 ]
Wang, Qilong [1 ]
Zhu, Zhuoya [1 ]
Di, Yunsong [1 ]
Zhang, Xiaobing [1 ]
机构：
[1] Southeast Univ, Sch Elect Sci & Engn, 2 Sipailou, Nanjing 210096, Jiangsu, Peoples R China
来源：
2015 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2015年
关键词：
large current density; carbon nanotubes; field emission;
D O I：
暂无
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：
We have fabricated large current density cold cathodes based on the printed carbon nanotubes(CNTs), which are applied in the compact vacuum electron devices including X-ray sources and microwave tubes. The peak value of the cathode current in the diode structure driven by DC voltage is up to 19.88mA (current density: similar to 2.51A/cm(2)), along with the fluctuations of the current smaller than 5.3% during the period of about 27 hours. The experimental results show that printed CNTs have the potential as field emission electron sources.
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页数：2
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