TITLE

Dominant recombination centers in Ga(In)NAs alloys: Ga interstitials

AUTHOR(S)
Wang, X. J.; Puttisong, Y.; Tu, C. W.; Ptak, Aaron J.; Kalevich, V. K.; Egorov, A. Yu.; Geelhaar, L.; Riechert, H.; Chen, W. M.; Buyanova, I. A.
PUB. DATE
December 2009
SOURCE
Applied Physics Letters;12/14/2009, Vol. 95 Issue 24, p241904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Optically detected magnetic resonance measurements are carried out to study formation of Ga interstitial-related defects in Ga(In)NAs alloys. The defects, which are among dominant nonradiative recombination centers that control carrier lifetime in Ga(In)NAs, are unambiguously proven to be common grown-in defects in these alloys independent of the employed growth methods. The defects formation is suggested to become thermodynamically favorable because of the presence of nitrogen, possibly due to local strain compensation.
ACCESSION #
47039177

 

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