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Papers by Diónys Rivas

Research paper thumbnail of Size dependent carrier thermal escape and transfer in bimodally distributed self assembled InAs/GaAs quantum dots

Journal of Applied Physics, 2012

We have investigated the temperature dependent recombination dynamics in two bimodally distribute... more We have investigated the temperature dependent recombination dynamics in two bimodally distributed InAs self assembled quantum dots samples. A rate equations model has been implemented to investigate the thermally activated carrier escape mechanism which changes from exciton-like to uncorrelated electron and hole pairs as the quantum dot size varies. For the smaller dots, we find a hot exciton thermal escape process. We evaluated the thermal transfer process between quantum dots by the quantum dot density and carrier escape properties of both samples.

Research paper thumbnail of Size dependent carrier thermal escape and transfer in bimodally distributed self assembled InAs/GaAs quantum dots

Journal of Applied …, 2012

We have investigated the temperature dependent recombination dynamics in two bimodally distribute... more We have investigated the temperature dependent recombination dynamics in two bimodally distributed InAs self assembled quantum dots samples. A rate equations model has been implemented to investigate the thermally activated carrier escape mechanism which changes from exciton-like to uncorrelated electron and hole pairs as the quantum dot size varies. For the smaller dots, we find a hot exciton thermal escape process. We evaluated the thermal transfer process between quantum dots by the quantum dot density and carrier escape properties of both samples.

Research paper thumbnail of Size dependent carrier thermal escape and transfer in bimodally distributed self assembled InAs/GaAs quantum dots

Journal of Applied Physics, 2012

We have investigated the temperature dependent recombination dynamics in two bimodally distribute... more We have investigated the temperature dependent recombination dynamics in two bimodally distributed InAs self assembled quantum dots samples. A rate equations model has been implemented to investigate the thermally activated carrier escape mechanism which changes from exciton-like to uncorrelated electron and hole pairs as the quantum dot size varies. For the smaller dots, we find a hot exciton thermal escape process. We evaluated the thermal transfer process between quantum dots by the quantum dot density and carrier escape properties of both samples.

Research paper thumbnail of Size dependent carrier thermal escape and transfer in bimodally distributed self assembled InAs/GaAs quantum dots

Journal of Applied …, 2012

We have investigated the temperature dependent recombination dynamics in two bimodally distribute... more We have investigated the temperature dependent recombination dynamics in two bimodally distributed InAs self assembled quantum dots samples. A rate equations model has been implemented to investigate the thermally activated carrier escape mechanism which changes from exciton-like to uncorrelated electron and hole pairs as the quantum dot size varies. For the smaller dots, we find a hot exciton thermal escape process. We evaluated the thermal transfer process between quantum dots by the quantum dot density and carrier escape properties of both samples.

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