Low-field electron emission from pinaster-like MoO_2 nanoarrays as two-stage emitters  

作　　者：张敬源 刘永刚 施松林 王岩国 王太宏 

机构地区：[1]Institute of Physics, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2008年第11期4333-4336,共4页中国物理B（英文版）

基　　金：Project supported by the National Key Basic Research of China (Grant No 2007CB310500);the Chinese Ministry of Education(Grant No 705040);the National Natural Science Foundation of China (Grant Nos 90606009, 60571044 and 10774174)

摘　　要：Low-field electron emission is obtained from the pinaster-like MoO2 nanoarrays. The turn-on field of the pinasterlike MoO2 nanoarrays is found to be as low as 2.39 V/μm with the current density of 10μA/cm2. 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 MoO2 nanoarrays and confirmed by the calculation in the frame of the two -stage model. Our results show that the pinaster-like MoO2 nanoarrays are promising candidate in realizing field emission displays.Low-field electron emission is obtained from the pinaster-like MoO2 nanoarrays. The turn-on field of the pinasterlike MoO2 nanoarrays is found to be as low as 2.39 V/μm with the current density of 10μA/cm2. 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 MoO2 nanoarrays and confirmed by the calculation in the frame of the two -stage model. Our results show that the pinaster-like MoO2 nanoarrays are promising candidate in realizing field emission displays.

关 键 词：field emission molybdenum dioxide enhancement factor 

分 类 号：O462[理学—电子物理学]