Preparation and luminescent properties of KBaYSi2O7:RE3+ (RE = Dy, Eu) single-host phosphors for white LED

被引：15
|
作者：
Zhao, Wenyu [1 ]
Wen, Huixia [1 ]
Yang, Xiaodong [1 ]
Qiao, Xiaojie [1 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 261卷
关键词：
Phosphor; w-LEDs; KBaYSi2O7:RE3+; Luminous properties; COLOR-TUNABLE LUMINESCENCE; EFFICIENT ENERGY-TRANSFER; PHOTOLUMINESCENCE PROPERTIES; EMISSION; TB3+;
D O I：
10.1016/j.matlet.2019.127104
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Novel KBaYSi2O7:RE3+ (RE = Dy, Eu, Dy/Eu) phosphors were synthesized through high-temperature solid state reaction. Dy3+ and Eu3+ had optimal doping concentrations of 0.05 and 0.10, respectively, and can emit white or red light under certain wavelength excitation. Under 394 nm excitation, the color of KBaY(0.)(95-)ySi(2)O(7):0.05Dy(3+), yEu(3+) phosphor turns from white to yellow and finally to orange region. KBaYSi2O7:RE3+ could be optional phosphors for near-ultraviolet chip-excited white light-emitting diodes. (C) 2019 Elsevier B.V. All rights reserved.
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页数：4
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