Publikation: Graded Shells in Semiconductor Nanocrystals
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Zeitschrift für Physikalische Chemie. 2017, 231(1), pp. 77-92. ISSN 0942-9352. eISSN 2196-7156. Available under: doi: 10.1515/zpch-2016-0882
Zusammenfassung
The current state-of-the-art of the fabrication and photophysics of graded shells in quantum dots is reviewed. Graded shells, i.e. partially alloyed interfaces between core and shell or between two shells of semiconductor nanoheterostructures, have been demonstrated to improve fluorescence properties and suppress non-radiative pathways of exciton dynamics. By simply looking at linear optics on the level of single excitons this is reflected in increased photoluminescence quantum yields. However, it is shown that graded shells have further beneficial implications for band structure engineering and multiexciton dynamics such as optical gain and charge carrier multiplication.
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BOLDT, Klaus, 2017. Graded Shells in Semiconductor Nanocrystals. In: Zeitschrift für Physikalische Chemie. 2017, 231(1), pp. 77-92. ISSN 0942-9352. eISSN 2196-7156. Available under: doi: 10.1515/zpch-2016-0882BibTex
@article{Boldt2017-01-01Grade-37281,
year={2017},
doi={10.1515/zpch-2016-0882},
title={Graded Shells in Semiconductor Nanocrystals},
number={1},
volume={231},
issn={0942-9352},
journal={Zeitschrift für Physikalische Chemie},
pages={77--92},
author={Boldt, Klaus}
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<dcterms:abstract xml:lang="eng">The current state-of-the-art of the fabrication and photophysics of graded shells in quantum dots is reviewed. Graded shells, i.e. partially alloyed interfaces between core and shell or between two shells of semiconductor nanoheterostructures, have been demonstrated to improve fluorescence properties and suppress non-radiative pathways of exciton dynamics. By simply looking at linear optics on the level of single excitons this is reflected in increased photoluminescence quantum yields. However, it is shown that graded shells have further beneficial implications for band structure engineering and multiexciton dynamics such as optical gain and charge carrier multiplication.</dcterms:abstract>
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