场致发射电子源的应用及其研究进展

doi:10.13385/j.cnki.vacuum.2019.03.06

Abstract

Abstract: Field emission electron sources have been found potential applications in X-ray tube, negative hydrogen ion source, display devices and other fields because of its several merits. In this paper, several applications of field electron emission are introduced firstly. Different field emission electron sources and their characteristics are compared and analyzed. Finally, the feasibility of using diamond like carbon film as cathode materials for field electron emission is analyzed on the basis of our experimental research. From the analysis i) it can be known that Spindt is difficult to fabricate and easy to be damaged; ii) carbon nanotube is the hottest issue in the current research because of its unique structure; iii) diamond like carbon film is easy to be synthesized and the composition can be adjusted. The advantages of both diamond and graphite in diamond like carbon film help it be the potential ideal field electron emission cathode material.

Key words: field electron emission, carbon nanotube, diamond film

CLC Number:

O539

LI Jian, TONG Hong-hui, DAN Min, JIN Fan-ya, WANG Kun, CHEN Lun-jiang. Applications and research progress of field emission electron sources[J].VACUUM, 2019, 56(3): 27-31.

References

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Applications and research progress of field emission electron sources

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