Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Yakunin S, Protesescu L, Krieg F, Bodnarchuk MI, Nedelcu G, Humer M, De Luca G, Fiebig M, Heiß W, Kovalenko MV
Zeitschrift: Nature Communications
Verlag: Nature Publishing Group: Nature Communications
Jahr der Veröffentlichung: 2015
Band: 6
Heftnummer: 6
ISSN: 2041-1723
Sprache: Englisch


Abstract


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 B10nm monodisperse colloidal nanocrystals of caesium lead halide perovskites CsPbX3 (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-2 and high values of modal net gain of at least 450±30 cm-1. Two kinds of lasing modes are successfully observed: whispering-gallery-mode lasing using silica microspheres as high-finesse resonators, conformally coated with CsPbX3 nanocrystals and random lasing in films of CsPbX3 nanocrystals.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Heiß, Wolfgang Prof. Dr.
Professur für Werkstoffwissenschaften (lösungsprozessierte Halbleitermaterialien)


Zusätzliche Organisationseinheit(en)
Energie-Campus Nürnberg (EnCN)
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Technische Fakultät


Einrichtungen weiterer Autorinnen und Autoren

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Johannes Kepler Universität (JKU) Linz


Zitierweisen

APA:
Yakunin, S., Protesescu, L., Krieg, F., Bodnarchuk, M.I., Nedelcu, G., Humer, M.,... Kovalenko, M.V. (2015). Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites. Nature Communications, 6(6). https://dx.doi.org/10.1038/ncomms9056

MLA:
Yakunin, Sergii, et al. "Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites." Nature Communications 6.6 (2015).

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Zuletzt aktualisiert 2019-22-08 um 21:50