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2010•Unpublished venueRequires access

Realize very large current field emission on a traditional thermal-cathode

Feng Gao, Mei Xiao, Xiaobing Zhang, Wei Lei, Zhiwei Zhao, Yunsong Di, Yunkang Cui

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Abstract

Carbon nanotubes (CNTs) have excellent performance in field emission[1-3]; they can be used as field emission (FE) cold cathodes. The traditional FE cold cathode is difficult to apply to the microwave electronic devices. In this paper, we used thermal chemical vapor deposition to synthesize CNTs directly on the surface of traditional thermal-cathode by self-heated. The result proved that the field emission properties of CNT cathode prepared by new way were excellent stable.

About this research paper

What this paper is about

Carbon nanotubes (CNTs) have excellent performance in field emission[1-3]; they can be used as field emission (FE) cold cathodes. The traditional FE cold cathode is difficult to apply to the microwave electronic devices. In this paper, we used thermal chemical vapor deposition to synthesize CNTs directly on the surface of traditional thermal-cathode by self-heated. The result proved that the field emission properties of CNT cathode prepared by new way were excellent stable.

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Available abstract

Carbon nanotubes (CNTs) have excellent performance in field emission[1-3]; they can be used as field emission (FE) cold cathodes. The traditional FE cold cathode is difficult to apply to the microwave electronic devices. In this paper, we used thermal chemical vapor deposition to synthesize CNTs directly on the surface of traditional thermal-cathode by self-heated. The result proved that the field emission properties of CNT cathode prepared by new way were excellent stable.

Key concepts: Cathode, Field electron emission, Carbon nanotube, Thermal emission, Cold cathode, Materials science, Thermal, Field (mathematics)

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