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

Author

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  • Sergii Yakunin

    (Laboratory of Inorganic Chemistry, ETH Zürich
    Laboratory for Thin Films and Photovoltaics, Empa—Swiss Federal Laboratories for Materials Science and Technology)

  • Loredana Protesescu

    (Laboratory of Inorganic Chemistry, ETH Zürich
    Laboratory for Thin Films and Photovoltaics, Empa—Swiss Federal Laboratories for Materials Science and Technology)

  • Franziska Krieg

    (Laboratory of Inorganic Chemistry, ETH Zürich
    Laboratory for Thin Films and Photovoltaics, Empa—Swiss Federal Laboratories for Materials Science and Technology)

  • Maryna I. Bodnarchuk

    (Laboratory of Inorganic Chemistry, ETH Zürich
    Laboratory for Thin Films and Photovoltaics, Empa—Swiss Federal Laboratories for Materials Science and Technology)

  • Georgian Nedelcu

    (Laboratory of Inorganic Chemistry, ETH Zürich
    Laboratory for Thin Films and Photovoltaics, Empa—Swiss Federal Laboratories for Materials Science and Technology)

  • Markus Humer

    (Institute of Semiconductor and Solid State Physics, University Linz)

  • Gabriele De Luca

    (Laboratory for Multifunctional Ferroic Materials, ETH Zürich)

  • Manfred Fiebig

    (Laboratory for Multifunctional Ferroic Materials, ETH Zürich)

  • Wolfgang Heiss

    (Institute of Semiconductor and Solid State Physics, University Linz
    Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg
    Energie Campus Nürnberg (EnCN))

  • Maksym V. Kovalenko

    (Laboratory of Inorganic Chemistry, ETH Zürich
    Laboratory for Thin Films and Photovoltaics, Empa—Swiss Federal Laboratories for Materials Science and Technology)

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 ∼10 nm 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.

Suggested Citation

  • Sergii Yakunin & Loredana Protesescu & Franziska Krieg & Maryna I. Bodnarchuk & Georgian Nedelcu & Markus Humer & Gabriele De Luca & Manfred Fiebig & Wolfgang Heiss & Maksym V. Kovalenko, 2015. "Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites," Nature Communications, Nature, vol. 6(1), pages 1-9, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9056
    DOI: 10.1038/ncomms9056
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    Cited by:

    1. Lingju Meng & Xihua Wang, 2022. "Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics," Energies, MDPI, vol. 15(7), pages 1-29, March.
    2. Jingyi Tian & Qi Ying Tan & Yutao Wang & Yihao Yang & Guanghui Yuan & Giorgio Adamo & Cesare Soci, 2023. "Perovskite quantum dot one-dimensional topological laser," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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