Theoretical Study of Enhanced Field Emission at the Triple Junction

Author

Chung, M.S. ; Bae, H.K. ; Jang, Y.J. ; Cutler, P.H. ; Miskovsky, N.M.

Author_Institution

Dept. of Phys., Ulsan Univ.

fYear

2006

fDate

38899

Firstpage

9

Lastpage

10

Abstract

A cylindrical dielectric-metal structure is used to analyze the field enhancement due to an extension of the dielectric layer in a triple junction. Results show that this type of field enhancement is caused by the polarization of the dielectric and that it may take place along the detour path from metal through dielectric to vacuum instead of from metal to vacuum. The amount of space charge produced lowers and thins the metal-dielectric Schottky barrier allowing more electrons to tunnel from the metal to the conduction band of the dielectric. Results also suggest that the triple junction can be a new type of field emitter

Keywords

Schottky barriers; conduction bands; dielectric polarisation; field emission; metal-insulator boundaries; space charge; tunnelling; Schottky barriers; conduction band; dielectric polarization; enhanced field emission; field emitters; metal-dielectric triple junction; space charge; Boundary conditions; Conductivity; Dielectric measurements; Electric potential; Electronic mail; Geometry; Laplace equations; Physics; Polarization; Vacuum breakdown;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International

Conference_Location

Guilin

Print_ISBN

1-4244-0401-0

Type

conf

DOI

10.1109/IVNC.2006.335308

Filename

4134433