电子元件与材料2017，Vol.36Issue(4)：42-45,4.DOI:10.14106/j.cnki.1001-2028.2017.04.008
钛基和镍基花状纳米ZnO阴极涂层的制备和场发射特性
Preparation and field emission characteristics of Ti-based and Ni-based flower-like nano-ZnO cathode coating
摘要
Abstract
The uniformly distributed flower-like nano-ZnO was prepared by hydrothermal method,and then the nano-ZnO was respectively deposisted on Ti sheet and Ni substrate to form the layer of dense field emission cathode coating by electrophoretic deposition.The cathode coatings were characterized by scanning electron microscope and metallographic microscope,and then the field emission characteristic test of the samples were conducted.The results indicate that the nano-ZnO coatings on the Ti sheet still keep the flower morphology and have no aggregation.However,the field emission cathode coatings on the Ni sheet distribute densely,and there are numerous emitter tips on the surface,meanwhile,ZnO powders become finer and more uniform.Compared with field emission characteristics of samples based on Ti sheet,the ZnO coatings based on Ni sheet have high field emission stability.Finally,the field emission mechanism of samples were discussed.关键词
花状氧化锌涂层/纳米材料/水热法/电泳沉积/表征/场发射Key words
flower-like ZnO coating/nanomaterial/hydrothermal method/electrophoretic deposition/characterization/field emission分类
信息技术与安全科学引用本文复制引用
李小敏,杨延宁,张富春,吴小帅,杨浩浩..钛基和镍基花状纳米ZnO阴极涂层的制备和场发射特性[J].电子元件与材料,2017,36(4):42-45,4.基金项目
国家自然科学基金资助(No.61664008) （No.61664008）
延安大学指导项目(No.YD2016-02) （No.YD2016-02）
2016地方高校国家培训大学生创新创业项目(No.1559,1569) （No.1559,1569）
2016年延安大学校级创新训练项目(No.D2016109) （No.D2016109）
高水平大学学科建设的专项研究基金资助项目(No.2015SXTS02) （No.2015SXTS02）
