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Carbon-nanotube cathodes on optical fibers

  • Xianqi Wei
  • , Weihua Liu
  • , Dengchao Zhao
  • , Xiaoli Wang
  • , Junhua Liu
  • , Hongzhong Liu
  • , Ke Yang
  • , Tuo Qu
  • , Xin Li
  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Well-aligned carbon nanotubes (CNTs) arrays were synthesized on series of fibers with different diameters to serve as field-emission cathode. Because the CNTs emitters reach out from the fiber curved surface, the distance between emitters varies with the diameter of the fiber. With the fiber diameter decreasing, the field emission enhancement of CNTs array increased because the screen effect decreased with the distance between emitters increasing. While the fiber diameter decreased from 200μm to 40μm, the turn-on voltage of CNTs array decreased from 610V to 200V, at the same time the emission current dramatic increased. Our approach to fabricate this structure of CNT tip has a potential application for future vacuum micro- and nano-electronics devices, especially in constructing a photo-assisted field-emission cathode as a pulsed electron source.

源语言英语
主期刊名Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012Om
236-238
页数3
DOI
出版状态已出版 - 2012
活动25th International Vacuum Nanoelectronics Conference, IVNC 2012 - Jeju, 韩国
期限: 9 7月 201213 7月 2012

出版系列

姓名Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012

会议

会议25th International Vacuum Nanoelectronics Conference, IVNC 2012
国家/地区韩国
Jeju
时期9/07/1213/07/12

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