| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7938919 | Superlattices and Microstructures | 2018 | 23 Pages |
Abstract
Excitons recombination dynamics in ZnMgO alloy have been studied by time-resolved photoluminescence according to temperature. At low temperature, localisation effects of the exciton are found to play a significant role. The photoluminescence (PL) decays are bi-exponential. The short lifetime has a constant value, whereas the long lifetime shows a dependency with temperature. For temperature higher than 100â¯K the declines show a mono-exponential decay. The PL declines are dominated by non-radiative process at temperatures above 150â¯K. The PL lifetime dependancy with temperature is analysed using a model including localisation effects and non-radiative recombinations.
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Authors
Mohammed Jassim Mohammed Ali, J.M. Chauveau, T. Bretagnon,