Cited by 47Strong Light-Matter InteractionsPerovskite Materials and ApplicationsSemiconductor Lasers and Optical Devices

Continuous-Wave Perovskite Polariton Lasers

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Zou, Chen, Cao, Xuhui, Wang, Zixiang, Yang, Yichen, Lian, Yaxiao, Zhao, Baodan, Di, Dawei·2025·Science Advances

Abstract

Solution-processed semiconductor lasers are next-generation light sources for large-scale, bio-compatible and integrated photonics. However, overcoming their performance-cost trade-off to rival III-V laser functionalities is a long-standing challenge. Here, we demonstrate room-temperature continuous-wave perovskite polariton lasers exhibiting remarkably low thresholds of ~0.4 W cm −2 , enabled by a variable single-crystal perovskite microcavity. The threshold outperforms state-of-the-art III-V lasers by ~30 times under optical pumping, and is exceptional among solution-processed lasers. The ultralow-threshold lasing arises from steady-state exciton-polariton condensation, a macroscopic quantum phenomenon akin to Bose-Einstein condensation. The steady-state condensation is attained by fine-tuning the cavity photon-exciton energy separation near the degeneracy point for strong light-matter interactions. These mechanisms enabled the initial demonstration of an indirectly injected perovskite laser chip powered by a gallium nitride light-emitting diode. Our findings create exciting avenues toward on-chip integration of solution-processed lasers, opening opportunities for lasing with ultralow energy consumption and unprecedented performance.

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  • Bose-Einstein condensation and polariton lasing are possible in microcavities, even at room temperature.

    “The possibilities of achieving Bose-Einstein condensation (BEC) [264-267] and polariton lasing [137,268-270], even at room temperature, are some of the current topics in the field of microcavity research.”

    From Metal Oxide Thin Films for Advanced Photonic Applications (2026) · cites this paper as [270]

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Authors
Zou, C., Cao, X., Wang, Z., Yang, Y., Lian, Y., Zhao, B., & Di, D.
Affiliations
Zhejiang University (CN)
Corresponding author
  • Zou, Chen
  • Zhao, Baodan
  • Di, Dawei
Venue
Science Advances
Published
2025-01-10
Volume
11
Issue
2
Pages
eadr8826-eadr8826
ISSN
2375-2548 (ISSN-L)
OpenAlex
W4406237188
Cited by
46
References
71
Citations by year
2026: 27 · 2025: 19
FWCI
16.64
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Science Advances (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Zhejiang University
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Semiconductor Lasers and Optical Devices
Keywords
exciton-polariton condensation, continuous-wave lasing, low-threshold lasing, light-matter interaction, on-chip integration, integrated photonics

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