Unusual Spectrally Reproducible and High Q‐Factor Random Lasing in Polycrystalline Tin Perovskite Films

An unusual spectrally reproducible near‐IR random lasing (RL) with no fluctuation of lasing peak wavelength is disclosed in polycrystalline films of formamidinium tin triiodide perovskite, which have been chemically stabilized against Sn2+ to Sn4+ oxidation. Remarkably, a quality Q‐factor as high as...

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Bibliographic Details
Published in:	Advanced materials (Weinheim) Vol. 35; no. 9; pp. e2208293 - n/a
Main Authors:	Chirvony, Vladimir S., Suárez, Isaac, Sanchez‐Diaz, Jesus, Sánchez, Rafael S., Rodríguez‐Romero, Jesús, Mora‐Seró, Iván, Martínez‐Pastor, Juan P.
Format:	Journal Article
Language:	English
Published:	Germany Wiley Subscription Services, Inc 01-03-2023
Subjects:	halide perovskites Inhomogeneity Lasing Oxidation Pb‐free Perovskites Polycrystals random lasing Reproducibility Semiconductor materials Spectral emittance Spontaneous emission Stability Thin films Tin Pb-free random lasing halide perovskites stability thin films
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