中国物理B ›› 2008, Vol. 17 ›› Issue (11): 4333-4336.doi: 10.1088/1674-1056/17/11/062

• • 上一篇    

Low-field electron emission from pinaster-like MoO2 nanoarrays as two-stage emitters

张敬源, 刘永刚, 施松林, 王岩国, 王太宏   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2008-04-25 修回日期:2008-07-01 出版日期:2008-11-20 发布日期:2008-11-20
  • 基金资助:
    Project supported by the National Key Basic Research of China (Grant No 2007CB310500) and the Chinese Ministry of Education (Grant No 705040), the National Natural Science Foundation of China (Grant Nos 90606009, 60571044 and 10774174).

Low-field electron emission from pinaster-like MoO2 nanoarrays as two-stage emitters

Zhang Jing-Yuan (张敬源), Liu Yong-Gang (刘永刚), Shi Song-Lin (施松林), Wang Yan-Guo (王岩国), Wang Tai-Hong (王太宏)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2008-04-25 Revised:2008-07-01 Online:2008-11-20 Published:2008-11-20
  • Supported by:
    Project supported by the National Key Basic Research of China (Grant No 2007CB310500) and the Chinese Ministry of Education (Grant No 705040), the National Natural Science Foundation of China (Grant Nos 90606009, 60571044 and 10774174).

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摘要： Low-field electron emission is obtained from the pinaster-like MoO$_{2}$ nanoarrays. The turn-on field of the pinaster-like MoO$_{2}$ nanoarrays is found to be as low as 2.39\,V/$\mu $m with the current density of 10\,$\mu $A/cm$^{2}$. The enhancement factor is extracted to be 3590 from the Fowler--Nordheim plot. These excellent emission properties are attributed to the special structure of the pinaster-like MoO$_{2}$ nanoarrays and confirmed by the calculation in the frame of the two -stage model. Our results show that the pinaster-like MoO$_{2}$ nanoarrays are promising candidate in realizing field emission displays.

关键词: field emission, molybdenum dioxide, enhancement factor

Abstract: Low-field electron emission is obtained from the pinaster-like MoO$_{2}$ nanoarrays. The turn-on field of the pinaster-like MoO$_{2}$ nanoarrays is found to be as low as 2.39 V/$\mu $m with the current density of 10 $\mu $A/cm$^{2}$. The enhancement factor is extracted to be 3590 from the Fowler--Nordheim plot. These excellent emission properties are attributed to the special structure of the pinaster-like MoO$_{2}$ nanoarrays and confirmed by the calculation in the frame of the two -stage model. Our results show that the pinaster-like MoO$_{2}$ nanoarrays are promising candidate in realizing field emission displays.

Key words: field emission, molybdenum dioxide, enhancement factor

中图分类号:  (Field emission, ionization, evaporation, and desorption)

  • 79.70.+q
61.46.-w (Structure of nanoscale materials) 85.45.Fd (Field emission displays (FEDs))