TITLE

Origins of luminescence from nitrogen-ion-implanted epitaxial GaAs

AUTHOR(S)
Weng, X.; Goldman, R. S.; Rotberg, V.; Bataiev, N.; Brillson, L. J.
PUB. DATE
October 2004
SOURCE
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2774
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have examined the origins of luminescence in N-ion-implanted epitaxial GaAs, using a combination of cross-sectional transmission electron microscopy and low-energy electron-excited nanoscale-luminescence spectroscopy. A comparison of reference, as-implanted, and implanted-plus-annealed samples reveals a variety of emissions. In all samples, we observe the GaAs fundamental band-gap emission, as well as several emissions related to GaAs native defects. In the as-implanted and implanted-plus-annealed samples, an emission related to the implantation-induced defects, is also observed. Interestingly, in the implanted-plus-annealed samples, we identify a near-infrared emission associated with GaAsN nanocrystallites.
ACCESSION #
14713390

 

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