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Field Emission Mechanism of H-Terminated N-Type Diamond NEA Surface

Published online by Cambridge University Press:  10 January 2012

Takatoshi Yamada ,
Masataka Hasegawa ,
Hisato Yamaguchi ,
Yuki Kudo ,
Ken Okano  and
Christoph E. Nebel
Takatoshi Yamada
Affiliation:
Nanotube Research Center, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba 305-8565, Japan
Masataka Hasegawa
Affiliation:
Nanotube Research Center, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba 305-8565, Japan
Hisato Yamaguchi
Affiliation:
Department of Physics, International Christian University, 3-10-2 Osawa, Mitaka 181-8585, Japan
Yuki Kudo
Affiliation:
Department of Physics, International Christian University, 3-10-2 Osawa, Mitaka 181-8585, Japan
Ken Okano
Affiliation:
Department of Physics, International Christian University, 3-10-2 Osawa, Mitaka 181-8585, Japan
Christoph E. Nebel
Affiliation:
Fraunhofer Institute of Applied Solid State Physics (FIA), Freiburg 79108, Germany
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Abstract

Field electron emission model of hydrogen-terminated n-type diamond was discussed. Ultra-violet photoelectron spectroscopy characterizations indicated that the electron affinity was -0.7 eV and an internal barrier of about 3.5 eV existed on the surface. Field electron emission properties depended on anode-diamond distances. Schottky barrier lowering model suggested that this internal barrier was lowered by the electric field (5.4x106 V/cm) applied onto the negative electron affinity surface of the H-terminated n-type diamond.

Keywords

diamondfield emissionphotoemission
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1395: Symposium N – Diamond Electronics and Biotechnology–Fundamentals to Applications V , 2012 , mrsf11-1395-n12-10
Copyright
Copyright © Materials Research Society 2012

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References

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