六边形栅网结构碳纳米管冷阴极仿真研究
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- 英文论文题名：Hexagon Mesh Grid Structure in the Field Electron Emission of Carbon Nanotubeold Cathodes
- 论文作者：徐伟康 ; 袁劲松 ; 袁学松
- 英文论文作者：XU Wei-kang ; YUAN Jing-song ; YUAN Xue-song ; Institute of Physical Electronics ; University of Electronic Science and Technology of China
- 年：2014
- 作者机构：电子科技大学物理电子学院;
- 论文关键词：碳纳米管 ; 冷阴极 ; 场致发射 ; 栅网结构
- 英文论文关键词：carbon nanotube ; cold cathode ; field-emission ; mesh grid structure
- 会议召开时间：2014-07-21
- 会议录名称：2014年全国电磁兼容与防护技术学术会议论文集（上）
- 语种：中文
- 分类号：TB383.1;TN104
- 学会代码：WBXB
- 会议名称：2014年全国电磁兼容与防护技术学术会议
- 会议地点：中国湖南常德
- 主办单位：中国电子学会微波分会、中国工程物理研究院复杂电磁环境科学与技术重点实验室、总装备部电磁兼容及防护技术专业组、天线与微波技术重点实验室
- 学会名称：《微波学报》编辑部
- 页数：4
- 文件大小：622k
- 原文格式：D
- 会议级别：全国
摘要
碳纳米管因其具有优良的场致发射特性,是比较理想的冷阴极材料。本文基于原有实验结果,利用三维粒子模拟软件对大面积碳纳米管冷阴极三级结构发射特性进行了仿真研究,分析了六边形网孔下不同网孔尺寸对碳纳米管冷阴极场致发射特性的影响。具体通过计算冷阴极表面电场分布及场致发射电子注的通过率,并进行数据对比,得到了六边形栅网的最佳尺寸,为下一步研究碳纳米管冷阴极场致发射电真空器件奠定了基础。
Carbon nanotube is the relatively ideal cathode materiall because of its good character ristics in the fiell d-emission. The characte eristics of the large area of carbon nanotube cold cathodes arresimulated by the three-dimen nsional particlee simulation software basing on the expe erimental results in this paper. The effect of the different mesh sizes in hexa agon mesh on the field-emissio on of carbon nanotube cold catt hodes with different parameter of the meshg rid is studied. By computing the electric-field d distribution on the surface off the cold cathod de and compariing the pass ratee of the beam current in the fiee ldemission, optimal meshsize of the hexagon mesh is obtained and the maximum pass rate of the electron beam is 75%.
Carbon nanotube is the relatively ideal cathode materiall because of its good character ristics in the fiell d-emission. The characte eristics of the large area of carbon nanotube cold cathodes arresimulated by the three-dimen nsional particlee simulation software basing on the expe erimental results in this paper. The effect of the different mesh sizes in hexa agon mesh on the field-emissio on of carbon nanotube cold catt hodes with different parameter of the meshg rid is studied. By computing the electric-field d distribution on the surface off the cold cathod de and compariing the pass ratee of the beam current in the fiee ldemission, optimal meshsize of the hexagon mesh is obtained and the maximum pass rate of the electron beam is 75%.
引文
[1]丁耀根刘濮鲲张兆传.真空电子学和微波真空电子器件的发展和技术现状[C].微波学报,2010,6(Z1):397-400.
[2]刘光诒,朱世棋,吕庆年等.制造大面积超长钨发射体阵列W-UFEA的光电子学法[J].电子器件,1994,17(3):42-45
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[4]Wang Q.H,Setlur A.A,Lauerhaas J.M,etal.A nanotubebased field-emission flat panel display.Appl.Phys.Lett.,1998,72(22):2912-2913.
[5]袁学松,张宇,孙利民等.碳纳米管冷阴极脉冲发射特性及仿真模型研究[J].物理学报,vo一61,No.21(2012)216101
[6]杨欢,袁学松,张宇等.栅网结构碳纳米管冷阴极仿真研究[J].微波学报,2012.6
[7]Zhang Y,Du J L,Tang S,Optimize the field emission character of a vertical few-layer graphene sheet by manipulating the morphology[J].Nanotechnology,2012,23:1-6.
[8]Richard G Forbes.Refining the application of Fowler–Nordheim theory[J].Ultramicroscopy,September 1999:11–23.
[2]刘光诒,朱世棋,吕庆年等.制造大面积超长钨发射体阵列W-UFEA的光电子学法[J].电子器件,1994,17(3):42-45
[3]朱长纯,张晓永,吴春瑜等.超长钨丝阵列锐化的研究[J].电子器件,1994,17(3):99-102
[4]Wang Q.H,Setlur A.A,Lauerhaas J.M,etal.A nanotubebased field-emission flat panel display.Appl.Phys.Lett.,1998,72(22):2912-2913.
[5]袁学松,张宇,孙利民等.碳纳米管冷阴极脉冲发射特性及仿真模型研究[J].物理学报,vo一61,No.21(2012)216101
[6]杨欢,袁学松,张宇等.栅网结构碳纳米管冷阴极仿真研究[J].微波学报,2012.6
[7]Zhang Y,Du J L,Tang S,Optimize the field emission character of a vertical few-layer graphene sheet by manipulating the morphology[J].Nanotechnology,2012,23:1-6.
[8]Richard G Forbes.Refining the application of Fowler–Nordheim theory[J].Ultramicroscopy,September 1999:11–23.