| People | Locations | Statistics |
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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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Fiebig, Manfred
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Combined Electrostatic and Strain Engineering of BiFeO<sub>3</sub> Thin Films at the Morphotropic Phase Boundarycitations
- 2024Combined electrostatic and strain engineering of BiFeO 3 thin films at the morphotropic phase boundarycitations
- 2020Robust in-plane ferroelectricity in ultrathin epitaxial aurivillius filmscitations
- 2019High-speed domain wall racetracks in a magnetic insulatorcitations
- 2019Ultrathin regime growth of atomically flat multiferroic gallium ferrite films with perpendicular magnetic anisotropycitations
- 2019Current-induced switching of YIG/Pt bilayers with in-plane magnetization due to Oersted fieldscitations
- 2017Microstructure and ferroelectricity of BaTiO 3 thin films on Si for integrated photonicscitations
- 2016Optimization of electronic domain-wall properties by aliovalent cation substitutioncitations
- 2015Magnetoresistance of heavy and light metal/ferromagnet bilayerscitations
- 2015Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskitescitations
- 2015Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites (vol 6, 8056, 2015)citations
- 2014Structural invariance upon antiferromagnetic ordering in geometrically frustrated swedenborgite, CaBaCo2Fe2O7citations
- 2011Optical second- and third-harmonic generation on the ferromagnetic semiconductor europium oxidecitations
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article
Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites
Abstract
<jats:title>Abstract</jats:title><jats:p>Metal halide semiconductors with perovskite crystal structures have recently emerged as highly promising optoelectronic materials. Despite the recent surge of reports on microcrystalline, thin-film and bulk single-crystalline metal halides, very little is known about the photophysics of metal halides in the form of uniform, size-tunable nanocrystals. Here we report low-threshold amplified spontaneous emission and lasing from ∼10 nm monodisperse colloidal nanocrystals of caesium lead halide perovskites CsPbX<jats:sub>3</jats:sub> (X=Cl, Br or I, or mixed Cl/Br and Br/I systems). We find that room-temperature optical amplification can be obtained in the entire visible spectral range (440–700 nm) with low pump thresholds down to 5±1 μJ cm<jats:sup>−2</jats:sup> and high values of modal net gain of at least 450±30 cm<jats:sup>−1</jats:sup>. Two kinds of lasing modes are successfully observed: whispering-gallery-mode lasing using silica microspheres as high-finesse resonators, conformally coated with CsPbX<jats:sub>3</jats:sub> nanocrystals and random lasing in films of CsPbX<jats:sub>3</jats:sub> nanocrystals.</jats:p>