Photoluminescent properties of single-phase white-light Ca8ZnGd (PO4)7:Eu2+,Mn2+ phosphor

被引：9
作者：
Bu, Xiaoya [1 ]
Liu, Yan-gai [1 ]
Wang, Baochen [1 ]
Mi, Ruiyu [1 ]
Wang, Ziyao [1 ]
Huang, Zhaohui [1 ]
机构：
[1] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Beijing 100083, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2020年 / 743卷
基金：
中国国家自然科学基金;
关键词：
Ca8ZnGd(PO4)(7); Phosphor; Luminescence; Energy transfer; LUMINESCENCE PROPERTIES; ENERGY-TRANSFER; EMITTING PHOSPHOR; TUNABLE LUMINESCENCE; EMISSION; MN2+;
D O I：
10.1016/j.cplett.2020.137185
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The Eu2+ activated Ca8ZnGd(PO4)(7):Eu2+ green light emitting phosphors and Eu2+/Mn2+ co-doped tunable light emitting phosphors Ca8ZnGd(PO4)(7):Eu2+,Mn2+ were successfully synthesized via the solid-state reaction method. The X-ray powder diffraction measurements and Rietveld refinement were used to assess the phase composite and crystal structure. The photoluminescence properties, diffuse reflection spectrum, chromaticity coordinates and fluorescence decay curves of the samples were investigated. It has been confirmed that the resonant type Eu2+-> Mn2+ energy transfer occurs via a dipole-quadrupole interaction. With various Eu2+/Mn2+ molar ratios, the spectrum-tunable phosphors are obtained from green (0.183, 0.335) to white (0.297, 0.298).
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页数：6
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