Field emission characteristics of nano-diamond cathode surface by graphitization pretreatment

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• 作者：Yan-mei Shi 石延栿/a> ; Yan-ning Yang 杨延嬿/a> ; Qiao-ping Liu 刘巧巿/a>…
• 刊名：Optoelectronics Letters
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：12
• 期：2
• 页码：85-88
• 全文大小：635 KB
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• 作者单位：Yan-mei Shi 石延梅 (1)
  Yan-ning Yang 杨延宁 (1)
  Qiao-ping Liu 刘巧平 (1)
  Wei-xia Li 李伟霞 (1)
  
  1. College of Physics & Electron Information and Information & Communication Engineering Research Institution, Yan’an University, Yan’an, 716000, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Applied Optics, Optoelectronics and Optical Devices
  Chinese Library of Science
  
• 出版者：Tianjin University of Technology, co-published with Springer-Verlag GmbH
• ISSN：1993-5013

文摘

Cathode samples of nano-diamond by graphitization pretreatment with different temperatures were fabricated by electrophoresis, then the structures and morphologies of the cathode samples were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD), and the field emission tests were conducted. The effects of graphitization pretreatment on the field emission characteristics of nano-diamond cathode surface on titanium substrate are studied. The results indicate that the surface morphologies of nano-diamond cathode samples after graphitization pretreatment change a lot, and the field emission characteristics in low-voltage area are improved obviously. However, in high-voltage area, the curve distortion happens, and it doesn’t conform the mechanism of field emission characteristics.