Field emission performances of CNTs bundles array

doi:10.1016/j.physe.2011.08.006

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Field emission performances of CNTs bundles array
	Dai, Jianfeng 1,2; Mu, Xiaowen 2; Chen, Xiaoting 2; Wang, Junhong 2; Fu, Bi 2
刊名	PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
	2011-10
卷号	44 期号:1 页码:152-155
关键词	Field emission Field emission cathodes Multiwalled carbon nanotubes (MWCN) Threshold voltage Anode-cathode distance Device parameters Emission current density Emission performance Field emission devices Field emission property Field enhancement factor Large emission currents
ISSN号	1386-9477
DOI	10.1016/j.physe.2011.08.006
英文摘要	The field emission performances of normal-gate cold cathode, which is composed of different multi-wall carbon nanotubes (MWCNTs) bundles array are calculated. The device parameters such as the arrangement of bundles, array density, gate location, gate voltage, anode voltages and anode-cathode distance affect the field emission properties, which is discussed in detail. The results reveal that the hexagon bundles array needs a lower threshold voltage than square array to reach high field enhancement factor and large emission current density. The emission current density is two orders larger than that of the oxide emitter. The optimal bundles array densities of hexagon and square array to get field enhancement factor are 0.0063 and 0.00375 mu m(-2), respectively. Meanwhile, the field emission performances are impacted critically by gate location and gate voltage. Field emission properties changed little while the anode-cathode distance varies within tens of micrometers, which increases the process-friendliness of CNTs field emission devices. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[50873047] ; Foundation of Gansu Education department of China[0603-02]
WOS研究方向	Science & Technology - Other Topics ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000297433600026
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/35045]
专题	理学院
通讯作者	Dai, Jianfeng
作者单位	1.State Key Lab Gansu Adv Non Ferrous Met Mat, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Dai, Jianfeng,Mu, Xiaowen,Chen, Xiaoting,et al. Field emission performances of CNTs bundles array[J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES,2011,44(1):152-155.
APA	Dai, Jianfeng,Mu, Xiaowen,Chen, Xiaoting,Wang, Junhong,&Fu, Bi.(2011).Field emission performances of CNTs bundles array.PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES,44(1),152-155.
MLA	Dai, Jianfeng,et al."Field emission performances of CNTs bundles array".PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 44.1(2011):152-155.