Field emission properties of patterned carbon nanotube cathodes prepared by cold-pressing method

被引：0

作者：

Xia, Ao ^{[1
]}

Liu, Yunpeng ^{[1
,2
]}

Lai, Sheng ^{[1
]}

Wang, Kang ^{[1
]}

Wang, Xiushan ^{[1
]}

Yu, Hao ^{[1
]}

Tang, Xiaobin ^{[1
,2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Dept Nucl Sci & Technol, Nanjing 210016, Peoples R China

[2] Minist Ind & Informat Technol, Key Lab Adv Nucl Technol & Radiat Protect, Nanjing 210016, Peoples R China

来源：

基金：

中国国家自然科学基金;

关键词：

Field emission; Cold-pressing method; Patterned cathode; Carbon nanotube; FABRICATION;

D O I：

10.1016/j.diamond.2025.112059

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A method of preparing a patterned carbon nanotube (CNT) cathode via a cold-pressing method is used in this study. The patterned cathode exhibited a low turn-on field strength and no significant deterioration in electron emission property, and the effects of different cold-press pressures on the field emission property of the patterned cathode were studied. Experimental results showed that when the cold-press pressure is 50 MPa, the patterned cathode has excellent field emission properties with a current fluctuation of 3.19 % (initial current density of 1.5 mA/cm2), a low turn-on field of 0.77 V/mu m, and an emission current density of 9.45 mA/cm2 at an electric field of 2.17 V/mu m. This study provides a feasible technical route for the low-cost and high-efficiency production of patterned cathode, which has broad application prospects.

引用

页数：6

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