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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。
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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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