High-Performance Field Electron Emitters Fabricated Using a Free-Standing Carbon Nanotube Film

被引：9
作者：
HAN, J. U. N. S. O. O. [1 ]
LEE, S. A. N. G. H. E. O. N. [1 ]
LEE, C. H. E. O. L. J. I. N. [1 ]
机构：
[1] Korea Univ, Sch Elect Engn, Seoul 02841, South Korea
来源：
IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY | 2022年 / 10卷
基金：
新加坡国家研究基金会;
关键词：
Carbon nanotube (CNT); field emission; field emitter; Carbon nanotube film; EMISSION CHARACTERISTICS; SUBSTRATE;
D O I：
10.1109/JEDS.2022.3178742
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The carbon nanotube (CNT) field emitter was fabricated using a thin free-standing CNT film, indicating a line-shape CNT field emitter. Field emission properties of the CNT field emitter were investigated in both diode and triode configurations. The CNT field emitter showed a low turn-on electric field of 1.8 V/mu m and a high emission current of 40.3 mA, corresponding to the emission current density of 96 A/cm(2) in the diode configuration. It also exhibited a high anode current of 40 mA, corresponding to the anode current density of 95.2 A/cm(2) in the triode configuration. In addition, the CNT field emitter showed a good electron beam transmittance of 86.4% and excellent emission stability without degradation for 15 h. The main reason for the high performance of our CNT field emitter is caused by the high density of emission sites at the edge of the CNT film.
引用
收藏
页码：402 / 407
页数：6
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