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Analytical optimization for field emission of carbon nanotube array
  • ISSN号：1001-6538
  • 期刊名称：科学通报(英文版)
  • 时间：0
  • 页码：1801-1804
  • 语言：中文
  • 分类：O462.4[理学—电子物理学;理学—物理] TB383[一般工业技术—材料科学与工程]
  • 作者机构：[1]College of Materials Science and Engineering, Zhejiang Province Key Laboratory of Magnetism, China Jiliang University, Hangzhou 310018, China, [2]Hangzhou No. 14 Middle School of Zhejiang Province, Hangzhou 310018, China
  • 相关基金：Supported by the National Natural Science Foundation of China （Grant Nos. 10647149, 20571067 and 20801050）
  • 相关项目：介孔二氧化硅纳米磁性材料的合成及磁性增强研究
作者： Wang XinQing|Li Liang|Jin DingFeng|Peng Min|Chen Min|Ge HongLiang|Jin HongXiao|
关键词： 碳纳米管阵列, 场发射, 优化, 发射电流密度, 场增强因子, 有限元分析, 距离, CNT, carbon nanotube, field emission, current density
中文摘要：

为了优化，回答排放(FE ) 碳 nanotube (CNT ) 的性质平面阴极表面上的数组， Fowler-Nordheim 公式被用来在这篇论文与漂浮的范围模型讨论排放水流密度的最大值。排放水流密度作为分析 Fowler-Nordheim 功能正在统治内部排放水流密度的试管距离，和最大值被推出并且讨论。结果显示内部在 CNT 数组的试管距离非常影响地改进因素和排放水流密度，其最大值发生在内部试管距离接近十分之一试管高度。就排放水流密度和地改进因素而言，当时， FE 能是优化经分解内部试管距离是大约十分之一试管高度。

英文摘要：

To optimize field emission （FE） property of carbon nanotube （CNT） array on a planar cathode surface, the Fowler-Nordheim formula has been used to discuss the maximum of the emission current density with the floating sphere model in this paper. The emission current density is dominating as the analytical Fowler-Nordheim function of the intertube distance, and the maximum of the emission current density is deduced and discussed. The results indicate that the intertube distance in CNT array critically affects the field enhancement factor and the emission current density, whose maximum occurs at the intertube distance approximating a tenth of the tube height. Considering the emission current density and the field enhancement factor, the FE can be optimized analytically when the intertube distance is about a tenth of the tube height.

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