Field emission properties of ZnO nanorods coated with NiO film

被引:14
|
作者
Yang, Ji Hoon [1 ]
Lee, Seung Youb [1 ]
Song, Woo Seok [1 ]
Shin, Yong Sook [1 ]
Park, Chong-Yun [1 ]
Kim, Hyun-Jin [2 ]
Cho, Wontae [2 ]
An, Ki-Seok [2 ]
机构
[1] Sungkyunkwan Univ, SKKU Adv Inst Nanosci & Technol, Phys Res Div BK21, Ctr Nanotubes & Nanostructured Composites, Suwon 440746, South Korea
[2] Korea Res Inst Chem Technol, Device Mat Res Ctr, Taejon 305600, South Korea
来源
关键词
D O I
10.1116/1.2919156
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The field emission (FE) properties of ZnO and NiO-coated ZnO (NiO/ZnO) nanorods are investigated under vacuum of 7x10(-7) Torr and oxygen rich vacuum of 1x10(-5) Torr. The ZnO nanorods were synthesized on a Si(100) substrate by metal-organic chemical vapor deposition, and the NiO film with the thickness of similar to 15 nm was coated by using atomic layer deposition. The turn-on voltages of the NiO/ZnO nanorod and the ZnO nanorod were similar to 5.2 and similar to 3.0 V/mu m at 1 mu A/cm(2), respectively. The electron FE stability of the NiO/ZnO nanorods to the ZnO nanorod was significantly improved in oxygen rich vacuum even. (C) 2008 American Vacuum Society.
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页码:1021 / 1024
页数:4
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