The thermal annealing of GaAsSbN/InP strained multiple quantum wells (MQWs) grown by metal organic chemical vapor deposition was investigated. Photoluminescence peak intensity and linewidth changes indicate a significant improvement in optical quality of the GaAsSbN/InP MQWs upon annealing. We find no significant annealing-induced blueshift of the optical transitions, which confirms the theoretical expectation that a change in the nearest-neighbor configuration nitrogen atoms has negligible effect on the band gap of GaAsSbN. The evolution of (400) x-ray diffraction rocking curves with thermal treatment of the samples was consistent with the constituent redistribution in the GaAsSbN QW.
Published in:
Applied Physics Letters
(Volume:91
,
Issue:
19
)
Date of Publication:
Nov 2007
- Page(s):
-
191909
-
191909-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.2805637
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Nov 2007