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author:

苏艺菁 (苏艺菁.) [1] | 胡利勤 (胡利勤.) [2] | 郑旭丹 (郑旭丹.) [3] | 许亚红 (许亚红.) [4] | 郭太良 (郭太良.) [5]

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CQVIP PKU CSCD

Abstract:

采用水热法在金属镍(Ni)丝表面生长氧化锌(ZnO)纳米材料。通过改变生长条件,制备出花状、锥状、管状、棒状四种形貌的ZnO—Ni壳核丝状阴极。采用扫描电子显微镜(SEM)观察所制备丝状阴极的表面形貌,采用X射线衍射(XRD)分析仪进行物相分析,结果表明所生长的纳米ZnO具有(002)晶面择优取向。测试比较了这四种形貌ZnO—Ni壳核丝状阴极的场发射性能,结果表明管状ZnO纳米材料能较好地改善阴极表面的微观形貌,提高了阴极的场增强效应。

Keyword:

丝状阴极 场发射 氧化锌 水热法

Community:

  • [ 1 ] 福州大学物理与信息工程学院,福州350002

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Source :

光电子技术

ISSN: 1005-488X

Year: 2010

Issue: 2

Volume: 30

Page: 80-83

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 2

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