Field emission properties of electrodeposited cobalt nanowire arrays grown in anodic aluminum oxide
详细信息 查看全文
- 作者：Zhenxing Song ; Yujuan Xie ; Suwei Yao ; Hongzhi Wang
- 关键词：Field emission ; Deposition ; Nanomaterials
- 刊名：Materials Letters
- 出版年：2011
- 出版时间：15 January 2011
- 年：2011
- 卷：65
- 期：1
- 页码：44-45
- 全文大小：330 K
文摘
The excellent vertically aligned cobalt nanowire arrays were electrodeposited into anodic aluminum oxide (AAO) templates. Each nanowire has the same length with 20 μm and the diameter with 60 nm. The field emission characteristics of the nanowires were firstly studied based on current–voltage measurements and the Fowler–Nordheim equation. The electron field emission measurements on the samples showed a turn-on field (1 mA/cm2) of 1.66 V/μm, a field enhancement factor of β = 3054 and a current density of 600 mA/cm2 at a relatively low voltage of 4.3 V/μm. The nanowire arrays could be an ideal alternative to carbon nanotubes and ZnO nanowires for the fabrication of flat panel displays.