Proceedings of nanoGe International Conference on Perovskite Solar Cells, Photonics and Optoelectronics (NIPHO19)
DOI: https://doi.org/10.29363/nanoge.nipho.2019.021
Publication date: 21st November 2018
A description of the photoemission properties of perovskite thin films, microcrystals and nanocrystals, and their dependence with the chemical and optical environment, will be provided. The exposure of thin films and microcrystals to different atmospheres has a strong effect on their photoemission, which reveals relevant information about the mechanism behind ion migration, one of the most intriguing observations reported for these semiconductors.[1,2] A detailed analysis of the processes triggered by photoexcitation that lead to activation and latter deactivation of luminescence will be presented. Also, it will be shown that precise control of the spectral features of the luminescence, along with enhanced stability, can be achieved from perovskite nanocrystals synthesized in different types of nanoporous matrices.[3,4] Interestingly, under these conditions, increase of the photoluminescence quantum yield results from the improved optical environment they are exposed to.[5] All this opens the door to the development of novel color converting coatings of application in LED technology, as it will be demonstrated in this talk.
Financial support of the Spanish Ministry of Economy and Competitiveness under grant MAT2017-88584-R is gratefully acknowledged.
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The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.