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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Reparaz, Juan Sebastian
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Publications (7/7 displayed)
- 2024Impact of Oligoether Side-Chain Length on the Thermoelectric Properties of a Polar Polythiophenecitations
- 2024On The Thermal Conductivity of Conjugated Polymers for Thermoelectricscitations
- 2023In-plane thermal diffusivity determination using beam-offset frequency-domain thermoreflectance with a one-dimensional optical heat sourcecitations
- 2022Enhanced Photoluminescence of Cesium Lead Halide Perovskites by Quasi‐3D Photonic Crystalscitations
- 2016Thermal conductivity of MoS2 polycrystalline nanomembranes
- 2015Tuning thermal transport in ultrathin silicon membranes by surface nanoscale engineeringcitations
- 2013Comparison of Two Types of Vertically Aligned ZnO NRs for Highly Efficient Polymer Solar Cellscitations
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article
Enhanced Photoluminescence of Cesium Lead Halide Perovskites by Quasi‐3D Photonic Crystals
Abstract
<jats:title>Abstract</jats:title><jats:p>Cesium lead halide perovskite nanocrystals have emerged as one of the most promising candidates for manufacturing portable lasers and light sources. In order to harness and exploit their photoluminescence more effectively, the nanocrystals are often accompanied by a photonic scheme that improves light emission. In this work, a quasi‐3D photonic crystal is introduced which is composed of a 2D‐grating on top of a distributed Bragg reflector (DBR) and provides a greater photoluminescence enhancement than the isolated architectures alone. The quasi‐3D photonic crystals support both Rayleigh‐Wood anomalies and guided modes that populate the photonic bandgap of the Bragg mirror, all of them capable of enhancing the outcoupling of light from the emitting layer. In order to demonstrate the benefits of the quasi‐3D system, the authors prepare 2D‐gratings, DBRs, and quasi‐3D photonic crystals covered with metal halide perovskite nanocrystals and study the photoluminescence enhancement produced in each case. Interestingly, the quasi‐3D structure exhibits a photoluminescence enhancement of 16 times and an increase in spontaneous emission rate, greatly exceeding the values observed for the separate components.</jats:p>