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Electrically-switchable gain in optically pumped CsPbBr3 lasers with low threshold at nanosecond pumping

Metal halide perovskites hold promise for nonepitaxial laser diodes, yet, continuous-wave (CW) optically pumped (photonic) lasing in CsPbBr3 remains elusive despite its superior thermal- and photo-stability among the perovskite family. This work reports on CsPbBr3 vertical cavity surface emitting la...

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Main Authors: Yang, Li (Author) , Liu, Shangpu (Author) , Feeney, Thomas (Author) , Roger, Julie (Author) , Gholipoor, Mohammad (Author) , Hu, Hang (Author) , Zhao, Dewei (Author) , Howard, Ian (Author) , Deschler, Felix (Author) , Lemmer, Uli (Author) , Paetzold, Ulrich Wilhelm (Author)
Format: Article (Journal)
Language:English
Published: April 2, 2025
In: Small
Year: 2025, Volume: 21, Issue: 13, Pages: 1-8
ISSN:1613-6829
DOI:10.1002/smll.202411935
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1002/smll.202411935
Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.202411935
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Author Notes:Yang Li, Shangpu Liu, Thomas Feeney, Julie Roger, Mohammad Gholipoor, Hang Hu, Dewei Zhao, Ian Howard, Felix Deschler, Uli Lemmer, and Ulrich W. Paetzold
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Summary:Metal halide perovskites hold promise for nonepitaxial laser diodes, yet, continuous-wave (CW) optically pumped (photonic) lasing in CsPbBr3 remains elusive despite its superior thermal- and photo-stability among the perovskite family. This work reports on CsPbBr3 vertical cavity surface emitting lasers with low lasing thresholds (1.3 µJ cm− 2) at nanosecond pumping and remarkable lasing stability. Furthermore, the electrically switchable gain is achieved in CsPbBr3 electrically assisted optically pumped laser (EAOPL) devices by leveraging ion migration. Applying a small positive DC voltage to the EAOPL device significantly reduces the lasing threshold under nanosecond laser excitation and enhances the cavity mode intensity at CW laser excitation. These findings present a novel strategy, combining a small DC voltage with an electrical pulse, for exploring electrical injection lasing in CsPbBr3 perovskites.
Item Description:Gesehen am 26.08.2025
Physical Description:Online Resource
ISSN:1613-6829
DOI:10.1002/smll.202411935

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