Tunable photoluminescence and energy transfer of Sr9LiMg(PO4)7: Ce3+/Tb3+/Mn2+ phosphors

被引：5
|
作者：
Luo, Jiabao [1 ]
Sun, Zishan [1 ]
Zhu, Zhenpeng [1 ]
Zhang, Xinguo [1 ]
Wu, Zhan-chao [2 ]
Mo, Fuwang [3 ]
机构：
[1] Southern Med Univ, Sch Pharmaceut Sci, Guangdong Prov Key Lab New Drug Screening, Guangzhou 510515, Peoples R China
[2] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Shandong Key Lab Biochem Anal, Qingdao 266042, Peoples R China
[3] Hezhou Univ, Coll Mat & Chem Engn, Guangxi Key Lab Calcium Carbonate Resources Compr, Hezhou 542899, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2020年 / 235卷 / 235期
基金：
中国国家自然科学基金;
关键词：
Phosphors; Whitlockite-type phosphate; Energy transfer; Luminescence; EMITTING PHOSPHOR; WHITE EMISSION; LUMINESCENCE; CE3+; PROGRESS; LIGHT; TB3+; EU2+;
D O I：
10.1016/j.saa.2020.118317
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The Ce3+/Tb3+/Mn2+ activated color-tunable phosphors Sr9LiMg(PO4)(7) (SLMP) were prepared by solid-state reaction with post-annealing treatment. The structural, static and time-resolved luminescent properties are studied in detail. XRD pattern showed the pure trigonal phase of Sr9LiMg(PO4)(7) at an annealing temperature of 1300 degrees C. Ce3+-doped SLMP phosphor exhibits near-ultraviolet emission with peak-wavelength at 380 nm. Efficient Ce3+-Tb3+/Mn2+ energy transfer process is demonstrated by luminescence spectrum and luminescence lifetimes of as-prepared samples. The emitting-color of SLMP: Ce3+/Tb3+/Mn2+ was tunable through changing Ce3+/Tb3+/Mn2+ ratio. Emission peak intensity of SLMP: Ce3+, Tb3+ phosphor shows good thermal stability with rising temperature. These results suggest its great potential as luminescent materials with good performance for UV-excitable applications. (C) 2020 Elsevier B.V. All rights reserved.
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页数：9
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