TITLE

Temperature-dependent carrier dynamics in self-assembled InGaAs quantum dots

AUTHOR(S)
Urayama, J.; Norris, T. B.; Jiang, H.; Singh, J.; Bhattacharya, P.
PUB. DATE
March 2002
SOURCE
Applied Physics Letters;3/25/2002, Vol. 80 Issue 12, p2162
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We measured the transient temperature-dependent carrier population in the confined states of self-assembled In[sub 0.4]Ga[sub 0.6]As quantum dots as well as those of the surrounding wetting layer and barrier region using differential transmission spectroscopy. Results show directly that thermal reemission and nonradiative recombination contribute significantly to the dynamics above 100 K. We offer results of an ensemble Monte Carlo simulation to explain the contribution of these thermally activated processes.
ACCESSION #
6358315

 

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