Electron emission characteristics of wet spun carbon nanotube fibers

被引：6

作者：

Back, T. C. ^{[1
]}

Gruen, G. ^{[1
]}

Park, J. ^{[1
]}

Murray, P. T. ^{[1
]}

Ludwick, J. ^{[2
]}

Cahay, M. ^{[2
]}

Fairchild, S. B. ^{[1
]}

机构：

[1] US Air Force, Mat & Mfg Directorate, Res Lab, Wright Patterson AFB, OH 45433 USA

[2] Univ Cincinnati, Spintron & Vacuum Nanoelect Lab, Cincinnati, OH 45221 USA

来源：

AIP ADVANCES | 2019年 / 9卷 / 06期

关键词：

FIELD-EMISSION; BRIGHTNESS;

D O I：

10.1063/1.5098328

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Wet spun carbon nanotube fibers were characterized using both field emission and electron energy distribution measurements. Fowler-Nordheim analysis of the field emission results showed that the carbon fibers demonstrated a large effective emission area, 2 x 10(-12) m(2), which resulted in a reduced brightness of 1.84 x 10(10) A/m(2)/sr/V. By considering the emission and number of carbon nanotube emitters it can be shown that the brightness is consistent with previous reports for single nanotube emitters. Additionally, using the effective emission area determined from the Fowler-Nordheim analysis an emittance value around 0.70 mu m was found. These characteristics are useful metrics in determining the applicability of using wet spun carbon nanotube fibers for field emission devices.

引用

页数：5

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