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Deep‐red photoluminescence and long persistent luminescence in double perovstkite‐type La 2 MgGeO 6 :Mn 4+
Author(s) -
Zhang Xiaowen,
Nie Jianmin,
Liu Shanshan,
Li Yang,
Qiu Jianrong
Publication year - 2018
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.15312
Subject(s) - photoluminescence , phosphor , luminescence , persistent luminescence , excited state , materials science , doping , photoluminescence excitation , ion , ultraviolet , phosphorescence , analytical chemistry (journal) , optoelectronics , chemistry , optics , fluorescence , atomic physics , physics , thermoluminescence , chromatography , organic chemistry
Abstract A novel non‐rare‐earth doped phosphor La 2 MgGeO 6 :Mn 4+ (LMG:Mn 4+ ) with near‐infrared (NIR) long persistent luminescence (LPL) was successfully synthesized by solid‐state reaction. The phosphors can be effectively excited using ultraviolet light, followed by a sharp deep‐red emission peaking at 708 nm, which is originated from 2 E g → 4 A 2g transition of Mn 4+ ions. The luminescent performance was analyzed by photoluminescence (PL) and photoluminescence excitation (PLE) spectra. The crystal field parameters were calculated to describe the environment of Mn 4+ in LMG host. The LPL behaviors as well as the mechanisms were systematically discussed. This study suggests that the phosphors will broaden new horizons in designing and fabricating novel NIR long phosphorescent materials.