Flexible water-resistant bamboo-like perovskite-embedded polymer nano/microfibers exhibiting Fabry–Pérot lasing

Autor: Hsin-Ming Cheng, You-Jia Pang, Chia-Kai Lin, Sheng-Chan Wu, Bo-Zhu You, Jung-Yao Chen, Hsu-Cheng Hsu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: APL Materials, Vol 12, Iss 6, Pp 061107-061107-12 (2024)
Druh dokumentu: article
ISSN: 2166-532X
DOI: 10.1063/5.0200465
Popis: Methylammonium lead bromide perovskite (MAPbBr3)-embedded nano- and micro-fibers are successfully fabricated by using the uniaxial electrospinning technique. Through the study of solidification and coordination between perovskite with hybrid polymers, polymethyl methacrylate, and polyacrylonitrile, the bamboo-like perovskite-embedded polymer nano/microfibers are unpredictably formed. Encapsulated in polymer, the passive perovskite-embedded polymer fibers exhibit a long-term fluorescence performance when simultaneously exposed to both water immersion and short-wavelength laser irradiation. Notably, due to the efficient gain media, the perovskite-rich region of the electrospun fiber can act as an optical microcavity. Multi-mode and single-mode lasing behaviors can be achieved via different cavity lengths. The mechanism of a microlaser within this perovskite fiber is confirmed through a Fabry–Pérot cavity, which provides an opportunity for optical components in lasers.
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