Perovskite nanocrystals-in-glass hierarchical structures enable stable continuous-wave random lasers.

Xinkuo Li, Chenduan Chen, Ke Sun, Linhan Li, Zhu Xiao, Zhou Li, Yuanzheng Yue, Jianrong Qiu, Dezhi Tan

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Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Xinkuo LiState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, College of Optical Science and Engineering, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.ORCID 0000-0001-7707-8007

Chenduan ChenState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, College of Optical Science and Engineering, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Ke SunChina International Science & Technology Cooperation Base for Laser Processing Robotics, Wenzhou University, Wenzhou 325035, China.ORCID 0000-0003-3055-9457

Linhan LiSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.

Zhu XiaoSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.

Zhou LiSchool of Materials Science and Engineering, Central South University, Changsha 410083, China.

Yuanzheng YueDepartment of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark.ORCID 0000-0002-6048-5236

Jianrong QiuState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, College of Optical Science and Engineering, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.ORCID 0000-0003-3148-2500

Dezhi TanState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, College of Optical Science and Engineering, and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.ORCID 0000-0002-2217-0583

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Encapsulating perovskite nanocrystals (PNCs) in glass enables enhanced stability of PNCs and numerous applications such as random lasers. However, preparing PNCs and tuning their properties in glass is energy consuming because of high processing temperature and long processing time, and continuous-wave (CW) random lasers have not been achieved. Here, we report modulation of the structure, photoluminescence, and lasing properties of PNCs in glass at temperatures well below the glass transition temperature with a short processing period. We generate tunable PNCs in glass via nanophase separation and ion exchange in the perovskite domains. PNCs-in-glass hierarchical structures are created by controlling nanophase separation and crystallization of PNCs. Substantially increased scattering in the hierarchical structures enables stable CW single-mode random lasing with an ultralow threshold of 52.6 milliwatts per square centimeter. We achieve flexible CW random lasers by incorporating hierarchical structures into the polydimethylsiloxane film. The random lasers are used in speckle-free laser imaging and dynamic holographic displays.

Identifiers

PMID41544155

DOI10.1126/sciadv.adz8460

PMCPMC12810581

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