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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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Hauptverfasser: Yang, Li (VerfasserIn) , Liu, Shangpu (VerfasserIn) , Feeney, Thomas (VerfasserIn) , Roger, Julie (VerfasserIn) , Gholipoor, Mohammad (VerfasserIn) , Hu, Hang (VerfasserIn) , Zhao, Dewei (VerfasserIn) , Howard, Ian (VerfasserIn) , Deschler, Felix (VerfasserIn) , Lemmer, Uli (VerfasserIn) , Paetzold, Ulrich Wilhelm (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: April 2, 2025
In: Small
Year: 2025, Jahrgang: 21, Heft: 13, Pages: 1-8
ISSN:1613-6829
DOI:10.1002/smll.202411935
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1002/smll.202411935
Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.202411935
Volltext
Verfasserangaben:Yang Li, Shangpu Liu, Thomas Feeney, Julie Roger, Mohammad Gholipoor, Hang Hu, Dewei Zhao, Ian Howard, Felix Deschler, Uli Lemmer, and Ulrich W. Paetzold
Beschreibung
Zusammenfassung: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.
Beschreibung:Gesehen am 26.08.2025
Beschreibung:Online Resource
ISSN:1613-6829
DOI:10.1002/smll.202411935

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