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Electron Emission from Nano-Structured Diamond

Published online by Cambridge University Press:  10 February 2011

W. Zhu ,
G. P. Kochanski  and
S. Jin
W. Zhu
Affiliation:
Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, New Jersey 07974, U.S.A.
G. P. Kochanski
Affiliation:
Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, New Jersey 07974, U.S.A.
S. Jin
Affiliation:
Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, New Jersey 07974, U.S.A.
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Abstract

Strong and sustained electron emission at low electric fields has been observed in undoped, nano-structured diamond. The cold cathode emitters consist of a layer of nanometer-size diamond particulates coated on a silicon substrate which is subsequently heat treated in a hydrogen plasma for activation. Electron emission for a current density of 10 mA/cm2is observed at an applied field of 3-5 V/μm. We attribute this excellent emission property to the high defect density in the nano-structured diamond particles and the low electron affinity associated with the diamond surface. The emitters are useful for applications such as flat panel displays as, in addition to the very low fields required, they can easily be deposited on large area substrates by low-cost coating techniques and do not require complicated microtip fabrication processes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 509: Symposium C – Materials Issues in Vacuum Microelectronics , 1998 , 53
Copyright
Copyright © Materials Research Society 1998

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