[1]陆 旭,狄云松.碳纳米管场发射背阴极式三极结构及其模拟[J].南京师大学报(自然科学版),2013,36(01):54-58.
　Lu Xu,Di Yunsong.Back-Cathode Triode Structure for CNT and Its Simulations[J].Journal of Nanjing Normal University(Natural Science Edition),2013,36(01):54-58.
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碳纳米管场发射背阴极式三极结构及其模拟()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第36卷
期数:
2013年01期
页码:
54-58
栏目:
物理学
出版日期:
2013-03-31

文章信息/Info

Title:
Back-Cathode Triode Structure for CNT and Its Simulations
作者:
陆 旭1; 狄云松2
(1.江苏联合职业技术学院镇江分院,江苏 镇江 212016) (2.南京师范大学物理科学与技术学院,江苏 南京 210023)
Author(s):
Lu Xu1; Di Yunsong2
(1.Jiangsu Union Technical Institute,College of Zhenjiang,Zhenjiang 212016,China) (2.Nanjing Normal University,School of Physics and Technology,Nanjing 210023,China)
关键词:
碳纳米管; 场发射器件; 三极结构; 调制特性
Keywords:
carbon nanotube; field emission device; triode; modulation characteristic
分类号:
O462.4
摘要:
提出了一种碳纳米管新型的背阴极式场发射三极结构.在这种结构中,带有孔阵列的薄玻璃基板作为阴极基板,碳纳米管阴极材料通过丝网印刷的方法装配在玻璃孔周围的阴极电极上.栅极电极则装配在阴极材料下方另一块基板上,在玻璃孔对面与之相对的则为覆盖有ITO电极和荧光粉层的阳极基板.在阳极基板上施加高电压,强电场则通过玻璃孔渗透到碳纳米管的表面使之发射,电子穿过玻璃通道轰击阳极,在栅极电极上施加反向电压用以减小阴极表面的电场从而关闭阴极发射达到调制效果.本文通过电场和电子轨迹的计算机模拟,验证此场发射三极结构的可行性并得出它的调制特性.
Abstract:
A new field emission triode structure with carbon nanotube(CNT)cathode called back-cathode is proposed.In this triode structure,a glass substrate with an array of holes is used as the cathode plate.The carbon nanotube emitters are printed around the holes on the cathode electrode.The gate electrodes are fabricated on another substrate which is mounted below the cathode substrate.Because a high anode voltage is applied,the electric field produced by the anode voltage can penetrate into the CNT cathode area.A negative voltage is applied on the gate electrode to control the emission current from the CNT cathode.The electrical field distribution and electron trajectories have been simulated,and the modulation feasibility and working modes of the structure have been discussed.

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备注/Memo

备注/Memo:
收稿日期:2012-05-04.
基金项目:国家自然基金(61101023)、江苏省高校自然科学基金(2009102TSJ0122).
通讯联系人:狄云松,博士,讲师,研究方向:物理电子学.E-mail:diyunsong@njnu.edu.cn
更新日期/Last Update: 2013-03-31