Luminescence properties of red-emitting Ca9Y(PO4)7: Eu3+ phosphor for NUV white-LEDs

被引：40
|
作者：
Wang, Baoling [1 ]
Lin, Yiting [1 ]
Ju, Haidong [1 ]
机构：
[1] Kunming Univ, Dept Chem, Kunming 650031, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 584卷
关键词：
Luminescence; Red phosphor; LED; PHOTOLUMINESCENCE PROPERTIES;
D O I：
10.1016/j.jallcom.2013.09.029
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：
Ca9Y(PO4)(7): Eu3+ phosphors have been prepared by solid state reaction. X-ray diffractometer, spectrofluorometer and UV-Vis spectrometer were used to characterize structural and optical properties of the samples. The results indicate that single-phase trigonal Ca9Y(PO4)(7): Eu3+ can be obtained when the calcination temperature is higher than 1100 degrees C. The optimum concentration of Eu3+-doped in the Ca9Y(PO4)(7) is 13 mol%. The CIE chromaticity coordinate of Ca9Y(PO4)(7): 0.13Eu(3+) phosphor (0.650, 0.349) is close to National Television Standard Committee (NTSC) standard value for red phosphor (0.670, 0.330). (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码：167 / 170
页数：4
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