TITLE

Activation characteristics and defect structure in Si-implanted GaAs-on-Si

AUTHOR(S)
Vernon, S. M.; Pearton, S. J.; Gibson, J. M.; Short, K. T.; Haven, V. E.
PUB. DATE
April 1987
SOURCE
Applied Physics Letters;4/27/1987, Vol. 50 Issue 17, p1161
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Undoped metalorganic chemical vapor deposited GaAs layers on Si substrates were implanted with 29Si ions (5×1012 cm-2 dose at 100 keV energy) to form a shallow n-type region. The net donor activation (74%) and electron mobility (3014 cm2 V-1 s-1) after rapid thermal annealing (900 °C, 10 s) were compared to those obtained for similar implants into bulk GaAs. There was a slight improvement in the proton backscattering yield from the GaAs-Si interface region after the annealing cycle, consistent with cross-sectional transmission electron microscopy data showing an alignment of defects in annealed samples.
ACCESSION #
9822787

 

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