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New Electronic Properties of Metal / III-V Compound Semiconductor Interfaces

Published online by Cambridge University Press:  25 February 2011

L. J. Brillson ,
R. E. Viturro ,
S. Chang ,
J. L. Shaw ,
C. Mailhiot ,
R. Zanoni ,
Y. Hwu ,
G. Margaritondo ,
P. Kirchner  and
J. M. Woodall
L. J. Brillson
Affiliation:
Xerox Webster Research Center, 800 Phillips Rd 0114-41D, Webster, NY 14580
R. E. Viturro
Affiliation:
Xerox Webster Research Center, 800 Phillips Rd 0114-41D, Webster, NY 14580
S. Chang
Affiliation:
Xerox Webster Research Center, 800 Phillips Rd 0114-41D, Webster, NY 14580
J. L. Shaw
Affiliation:
Xerox Webster Research Center, 800 Phillips Rd 0114-41D, Webster, NY 14580
C. Mailhiot
Affiliation:
Xerox Webster Research Center, 800 Phillips Rd 0114-41D, Webster, NY 14580
R. Zanoni
Affiliation:
Department of Physics, University of Wisconsin, Madison, WI 53706
Y. Hwu
Affiliation:
Department of Physics, University of Wisconsin, Madison, WI 53706
G. Margaritondo
Affiliation:
Department of Physics, University of Wisconsin, Madison, WI 53706
P. Kirchner
Affiliation:
IBM Watson Research Center, P.O. Box 218, Yorktown, Heights, NY 10598
J. M. Woodall
Affiliation:
IBM Watson Research Center, P.O. Box 218, Yorktown, Heights, NY 10598
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Abstract

Recent studies of interface states and band bending at metal / III-V compound semiconductor interfaces reveal that these junctions are much more controllable and predictable than commonly believed. Soft x-ray photoemission spectroscopy studies demonstrate a wide range of band bending for metals on many III-V compounds, including GaAs. Cathodoluminescence spectroscopy measurements show that discrete states form at the microscopic junction which can have a dominant effect on the band bending properties. Internal photoemission measurements confirm the bulk barrier heights inferred by photoemission methods. After separating out surface chemical and bulk crystal quality effects, one finds simple, predictive barrier height variations which follow classical Schottky behavior.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 148: Symposium D – Chemistry and Defects in Semiconductor Heterostructures , 1989 , 103
Copyright
Copyright © Materials Research Society 1989

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