期刊
OPTICAL MATERIALS
卷 122, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.optmat.2021.111802
关键词
Lead-free double perovskite; Cs2NaInCl6; Manganese doping; Red emission; Photoluminescence
资金
- National Natural Science Foundation of China [62065004, 51762011, 51862004]
- Guangxi Natural Science Foundation [2018GXNSFDA294002]
In this study, Mn-doped Cs2NaInCl6 phosphors were synthesized using a solvothermal method, showing stable double perovskite crystal structure and good optical properties. The material exhibited observable red fluorescence characteristics, making it promising for potential applications in lighting and displays.
Doping with transition metal ions in lead-free double perovskite material of Cs2NaInCl6 has been highly spotlighted for tailoring optical properties and advancing light-emitting applications. Herein, solvothermal method is employed to synthesizing Mn-doped Cs2NaInCl6 phosphors with a purpose of imparting new optical properties in the visible light region. X-ray diffraction, scanning electron microscope, X-ray photoelectron spectroscopy, thermogravimetric analysis, electron paramagnetic resonance and photoluminescence (PL) techniques confirm that Mn-doped Cs2NaInCl6 exhibits stable double perovskite crystal structure, good stability, and exceptional electronic properties. Mn-doped Cs2NaInCl6 also shows observable red fluorescence peaking at 610 nm with PL decay lifetime of about 0.21 ms and PL quantum yield of about 5%, owing to the T-4(1)->(6)A(1) transition of the Mn d electron.
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