Abstract
We present the results of steady state and time dependent photoluminescence measurements on ZnSe/Zn<SUB>0.83</SUB>Cd<SUB>0.17</SUB>Se multiple quantum wells from which the dominant recombination mechanisms are identified. Our experiments show that excitons rather than free carriers are the players in the recombination dynamics. Exciton localization is found to be an important factor competing with nonradiative recombination and enhancing the radiative efficiency in the multiple quantum wells investigated.
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