摘要
采用水热法在Ni丝上制备锥状ZnO,形成ZnO-Ni壳核丝状阴极。采用X射线衍射分析仪进行物相分析,表明该ZnO具有沿002面生长的取向。用扫描电子显微镜(SEM)观察其表面形貌,表明Ni的表面生长有一层分布均匀的锥状ZnO。通过场发射性能测试,结果表明ZnO-Ni壳核丝状阴极具有比平面结构中的ZnO纳米锥阴极更优良的场发射性能,并对该结果进行讨论。
In this paper we adopted hydrothermal method to fabricate ZnO nanoneedles onthe nickle wire to form ZnO-Ni lemalle-nucleus linear cathodes. X-ray diffraction(XRD)analysis was used to characterize the morphology and structure of the products. Theresults of characterization indicate that the nanoneedles are grow preferentially along [002]direction. There is a homogeneous layer of ZnO nanoneedles on the surface of nickle wireas measured by Scanning Electron Microscopy (SEM). The field emission propertiesmeasur...
出处
《现代显示》
2009年第1期51-54,共4页
Advanced Display
基金
国家863计划重大专项(2008AA03A313)
福建省科技重大专项专题(2004HZ01-2)
关键词
水热法
氧化锌
丝状阴极
场发射
hydrothermal method
ZnO
linear cathodes
field emission
