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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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Lang, Felix
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Ion-induced field screening as a dominant factor in perovskite solar cell operational stabilitycitations
- 2024Resolving electron and hole transport properties in semiconductor materials by constant light-induced magneto transportcitations
- 2024Distributed Feedback Lasing in Thermally Imprinted Phase‐Stabilized CsPbI3 Thin Filmscitations
- 2024Resolving electron and hole transport properties in semiconductor materials by constant light-induced magneto transport.
- 2023Methylammonium-free co-evaporated perovskite absorbers with high radiation and UV tolerance: an option for in-space manufacturing of space-PV?citations
- 2022Revealing the doping density in perovskite solar cells and its impact on device performancecitations
- 202221.6%-efficient monolithic perovskite/Cu(In,Ga)Se2 tandem solar cells with thin conformal hole transport layers for integration on rough bottom cell surfaces
- 2022High Open-Circuit Voltage Lead-Free Cs2AgBiBr6 Double Perovskite Solar Cells from Spray-Coating Deposition
- 2022Understanding performance limiting interfacial recombination in pin Perovskite solar cellscitations
- 2022Quantification of Efficiency Losses Due to Mobile Ions in Perovskite Solar Cells via Fast Hysteresis Measurementscitations
- 2021Quantification of efficiency losses due to mobile ions in Perovskite solar cells via fast hysteresis measurementscitations
- 2021Universal Current Losses in Perovskite Solar Cells Due to Mobile Ionscitations
- 2021Spray‐Coated Lead‐Free Cs 2 AgBiBr 6 Double Perovskite Solar Cells with High Open‐Circuit Voltage
- 2021Universal current losses in Perovskite solar cells due to mobile ionscitations
- 2021Proton radiation hardness of perovskite tandem photovoltaics
- 2020Proton Radiation Hardness of Perovskite Tandem Photovoltaicscitations
- 2017It Takes Two to Tango - Double-Layer Selective Contacts in Perovskite Solar Cells for Improved Device Performance and Reduced Hysteresiscitations
- 2017Efficient light management by textured nanoimprinted layers for perovskite solar cellscitations
- 2017It Takes Two to Tango-Double-Layer Selective Contacts in Perovskite Solar Cells for Improved Device Performance and Reduced Hysteresiscitations
Places of action
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article
Distributed Feedback Lasing in Thermally Imprinted Phase‐Stabilized CsPbI3 Thin Films
Abstract
<jats:title>Abstract</jats:title><jats:p>All‐inorganic cesium lead halide perovskites (CsPbX<jats:sub>3</jats:sub>, with X = I, Br, Cl) are of great interest for light‐emitting diodes and lasers, as they promise improved thermal stability compared to their organic–inorganic analogues. However, among this family of materials, CsPbI<jats:sub>3</jats:sub> shows a detrimental phase instability that causes the perovskite to convert to a thermodynamically preferred non‐perovskite phase (yellow phase) at room temperature. In fact, reports on lasers using thin films of CsPbI<jats:sub>3</jats:sub> as gain medium are missing, as of yet. Here, the first distributed feedback (DFB) lasers based on CsPbI<jats:sub>3</jats:sub> thin films are presented with a resonator directly patterned into the perovskite by thermal nanoimprint. This breakthrough is unlocked by the additive polyvinyl pyrrolidone (PVP), that affords the formation of perovskite layers consisting of phase stable γ‐CsPbI<jats:sub>3</jats:sub> nanocrystals, that are even preserved during thermal imprint at 170 °C. The DFB lasers show a low lasing threshold of 45 µJ cm<jats:sup>−2</jats:sup> at room temperature under optical pumping and a tunable emission in the deep red spectral region between 714.1 to 723.4 nm. It is anticipated that the findings of this work will have a broad relevance for future electrically driven perovskite lasers and for light‐emitting diodes based on CsPbI<jats:sub>3</jats:sub> as active medium.</jats:p>