Extremely stable field emission from AlZnO nanowire arrays

被引：56
作者：
Xue, X. Y.
Li, L. M.
Yu, H. C.
Chen, Y. J.
Wang, Y. G.
Wang, T. H. [1 ]
机构：
[1] Hunan Univ, Micro Nano Technol Res Ctr, Changsha 410082, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 04期
基金：
中国国家自然科学基金;
关键词：
CHEMICAL-VAPOR-DEPOSITION; CARBON NANOTUBES; ENHANCEMENT;
D O I：
10.1063/1.2236288
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Extremely stable electric field emission from well-aligned AlZnO nanowire arrays is realized. The emission current density is up to 6.5 mA/cm(2), and no current saturation is observed. The turn-on field is 2.9 V/mu m as d (distance between the nanowire emitters and anode) is 0.64 mm. After aging for two days, the emission current is extremely stable with the fluctuations of +/- 0.4%. The high stability arises from the high crystal quality with few surface states of the nanowires and the in situ fabrication of cathodes. The field emission behaviors are in excellent agreement with Fowler-Nordheim theory, and the relationship between the field enhancement factor beta and d follows a universal equation. Our results imply that AlZnO nanowire arrays are promising candidates for field emission displays. (c) 2006 American Institute of Physics.
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页数：3
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