Electrically‐Switchable Gain in Optically Pumped CsPbBr₃ Lasers With Low Threshold at Nanosecond Pumping

Authors: Yang Li, Shangpu Liu, Thomas Feeney, Julie Roger, Mohammad Gholipoor, Hang Hu, Dewei Zhao, Ian Howard, Felix Deschler, Uli Lemmer, Ulrich W. Paetzold

Published: 2025-03-11

DOI: 10.1002/smll.202411935

Source: Full article

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Abstract

AbstractMetal 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−