铜碳纳米管体冷阴极的制备及其场发射性能

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-02-03 DOI:10.1016/j.jallcom.2025.178970

Mingyu Li, Dejie Guo, Shipeng Che, Keke Zhu, Huali Ma, Haibo Huo, Peng Yang, Zhaojun Tang, Fanguang Zeng

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引用次数: 0

摘要

采用无压烧结技术制备了铜碳纳米管（Cu-CNTs）体冷阴极，并对其场发射特性进行了研究。通过控制铜与碳纳米管的比例和烧结温度，发现在碳纳米管含量为10%、烧结温度为900℃、导通电场（电流密度为10 μA/cm2）和阈值电场（电流密度为1 mA/cm2）分别为1.71 V/μm和2.65 V/μm时，具有最佳的场发射性能。与相关文献相比，本研究制备的铜-碳纳米管块状冷阴极性能优越，制备方法简单高效。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Preparation and field emission performance of copper-carbon nanotubes bulk cold cathodes

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Preparation and field emission performance of copper-carbon nanotubes bulk cold cathodes

The copper-carbon nanotubes (Cu-CNTs) bulk cold cathode was fabricated using a pressureless sintering technique, and their field emission characteristics were investigated. By controlling the ratio of copper to CNTs and the sintering temperature, it was found that the optimal field emission performance occurs at a CNT content of 10 % and a sintering temperature of 900 ℃, with turn-on electric field (at the current density of 10 μA/cm²) and threshold electric field (at the current density of 1 mA/cm²) values of 1.71 V/μm and 2.65 V/μm, respectively. Compared with relevant literature, the copper-CNTs bulk cold cathodes prepared in this study exhibited superior performance, and the fabrication method is simple and efficient.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.