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2.5–5.5 μm mid‐infrared emission from Ni 2+ ‐doped chalcohalide glass ceramics containing CsPbI 3 perovskite nanocrystals
Author(s) -
Cui Manman,
Yang Anping,
Sun Mingyang,
Lin Huixing,
Lin Hang,
Ren Jing,
Yang Zhiyong
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17941
Subject(s) - materials science , nanocrystal , dopant , luminescence , doping , ceramic , laser , perovskite (structure) , transparent ceramics , optoelectronics , gain , crystallization , mineralogy , optics , active laser medium , nanotechnology , chemical engineering , laser power scaling , composite material , chemistry , physics , engineering
The development of mid‐infrared (MIR) broadband tunable lasers urgently needs high performance laser gain materials. Transition metal (TM) ions doped glass ceramics are considered to be efficient MIR broadband laser gain media. However, it is difficult to achieve gain because of the large scattering loss and low luminescence efficiency. In this paper, GeS 2 –Sb 2 S 3 –CsI–PbI 2 chalcohalide glass ceramics containing CsPbI 3 perovskite nanocrystals are fabricated by the melt‐quenching method and subsequent heating treatment. The crystallization behavior of CsPbI 3 nanophase and MIR luminescence properties of Ni 2+ dopant are systematically investigated. Evidently, spherical CsPbI 3 perovskite nanocrystals are precipitated and uniformly distributed in the glassy matrix, which can reduce the light scattering and make the chalcohalide glass ceramics have a high transparency. Moreover, an ultra‐broadband MIR emission in the range of 2.5–5.5 μm is observed for the first time, to our best knowledge, from Ni 2+ ‐doped chalcohalide glass ceramics containing CsPbI 3 perovskite nanocrystals. The newly developed Ni 2+ ‐doped chalcohaldie glass ceramics could be promising gain media for MIR broadband tunable lasers.