光致发光
荧光粉
发光
持续发光
激发态
材料科学
兴奋剂
光致发光激发
离子
紫外线
磷光
分析化学(期刊)
光电子学
化学
光学
荧光
原子物理学
物理
热释光
有机化学
色谱法
作者
Xiaowen Zhang,Jianmin Nie,Shanshan Liu,Yang Li,Jianrong Qiu
摘要
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.
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