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Solution‐Processed Tin‐Based Perovskite for Near‐Infrared Lasing
Author(s) -
Xing Guichuan,
Kumar Mulmudi Hemant,
Chong Wee Kiang,
Liu Xinfeng,
Cai Yao,
Ding Hong,
Asta Mark,
Grätzel Michael,
Mhaisalkar Subodh,
Mathews Nripan,
Sum Tze Chien
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201601418
Subject(s) - tin , materials science , lasing threshold , perovskite (structure) , infrared , optoelectronics , yield (engineering) , halide , optics , inorganic chemistry , chemical engineering , composite material , metallurgy , wavelength , chemistry , physics , engineering
The family of solution‐processed tin‐based perovskites is demonstrated as a new and superior near‐infrared gain medium. Due to the large electron–hole bimolecular recombination associated with tin and the reduced trap density with SnF 2 treatment, these lead‐free “green” perovskites yield stable coherent light emission extending to ≈1 μm at strikingly low thresholds.