Energy transfer and multicolor tunable emission in single-phase Tb3+, Eu3+ co-doped Sr3La(PO4)3 phosphors

被引：56
作者：
Zhang, Xinguo [1 ,4 ]
Zhang, Jilin [2 ]
Chen, Yibo [3 ]
Gong, Menglian [4 ]
机构：
[1] Southern Med Univ, Sch Pharmaceut Sci, Guangdong Prov Key Lab New Drug Screening, Guangzhou 510515, Guangdong, Peoples R China
[2] Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China
[3] Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou 510006, Guangdong, Peoples R China
[4] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Phosphor; Optical property; Energy transfer; Color-tunable; EMITTING PHOSPHOR; LUMINESCENCE; UV; SM3+; RED;
D O I：
10.1016/j.ceramint.2016.05.202
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A series of green-to-red color-tunable Sr3La(PO4)(3):Tb3+, Eu3+ phosphors were prepared by high temperature solid-state method. The crystal structures, photoluminescence properties, fluorescence lifetimes, and energy transfer of Sr3La(PO4)(3):Tb3+, Eu3+ were systematically investigated in detail. The obtained phosphors show both a green emission from Tb3+ and a red emission from Eu3+ with considerable intensity under ultraviolet (UV) excitation (similar to 377 nm). The emission colors of the phosphors can be tuned from green (0.304, 0.589) through yellow (0.401, 0.505) and eventually to red (0.557, 0.392) due to efficient Tb3+-Eu3+ energy transfer (ET). The Tb3+-> Eu3+ energy transfer process was demonstrated to be quadrupole-quadrupole mechanism by Inokuti-Hirayama model, with maximum ET efficiency of 86.3%. The results indicate that the Sr3La(PO4)(3):Tb3+. Eu3+ phosphors might find potential applications in the field of lighting and displays. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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页码：13919 / 13924
页数：6
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