| 引用本文: | 潘金艳,袁占生,卫雅芬,刘卫华.Ni基碳纳米管场发射阴极的性能研究[J].材料科学与工艺,2011,19(4):134-137,144.DOI:10.11951/j.issn.1005-0299.20110427. |
| PAN Jin-yan,YUAN Zhan-sheng,WEI Ya-fen,LIU Wei-hua.Properties of carbon nanotube field emission cold cathode based Ni electrode[J].Materials Science and Technology,2011,19(4):134-137,144.DOI:10.11951/j.issn.1005-0299.20110427. |
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| 摘要: |
| 导电电极决定碳纳米管(CNT)阴极的接触方式和导电特性,影响阴极场发射特性和使用寿命.为改善膜层与基底的附着特性,磁控溅射制作亲碳性Ni电极.微观表征发现Ni基CNT阴极中生成了碳化镍相,这增加了CNT与电极间形成欧姆接触概率,降低甚至消除了从电极到CNT的电子传输势垒,能有效提高阴极导电性.场发射特性测试结果显示Ni基,尤其是ITO/Ni基CNT阴极的场发射电流密度和场发射均匀性显著提高,并能够激发均匀的高亮度. |
| 关键词: 碳纳米管(CNT) 场发射 均匀性 稳定性 |
| DOI：10.11951/j.issn.1005-0299.20110427 |
| 分类号:TB383.1 |
| 基金项目:国家自然科学基金(重点项目60036010面上项目60476037);福建省教育厅科技项目(JA10197);集美大学科研基金项目(ZQ2009005);河南省基础与前沿技术研究计划(092300410139) |
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| Properties of carbon nanotube field emission cold cathode based Ni electrode |
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PAN Jin-yan1, YUAN Zhan-sheng1, WEI Ya-fen1, LIU Wei-hua2
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1.College of Information Engineering,Jimei University,Xiamen 361021,China;2.School of Electronics&Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China
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| Abstract: |
| Electrode has great importance of interface structure and electrical conductivity in CNT cathode, accordingly field emission properties and life span of CNT cathode are influenced.To enhance adhesion performance between CNT and electrode,Nickel electrode which is easy to be carbonized is fabricated.Microscopic characterization shows that Ni3 C phase is synthesized in CNT cathode printed on Nickel substrate. Hence probability of ohmic contact increases and the conductivity of CNT cathode is improved,and decreases and even eliminates potential barrier between electrode and CNT,as well as increase electric conductivity of CNT cathode.Field emission tests show that field emission current density and uniformity of CNT cathode based on Ni electrode are enhanced remarkably,especially for ITO/Ni electrode,uniform and high luminance can be excited. |
| Key words: Carbon nanotube(CNT) Field emission Uniformity Stability |
