Single-phased white-light-emitting Sr3NaLa(PO4)3F: Eu2+,Mn2+ phosphor via energy transfer

被引：43
作者：
Hu Shanshan [1 ]
Tang Wanjun [1 ]
机构：
[1] South Cent Univ Nationalities, Coll Chem & Mat Sci, Hubei Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2014年 / 145卷
关键词：
Optical properties; Luminescence; Phosphor; Belovite-(La); EMISSION-TUNABLE PHOSPHOR; LUMINESCENCE; MN2+; EU2+; CE3+; STRONTIUM; APATITES; TB3+; UV;
D O I：
10.1016/j.jlumin.2013.07.044
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Single-phased white-light-emitting Sr3NaLa(PO4)(3)F:Eu2+,Mn2+ phosphor is synthesized via the combustion-assisted synthesis technique. Upon excitation of 344 nm ultraviolet (UV) light, two intense broad bands have clearly been obtained due to the allowed 5d-4f transition of Eu2+ and the forbidden T-4(1)-(6)A(1) transition of Mn2+, respectively. As a result of fine-tuning of the emission composition of the Eu2+ and Mn2+ ions, white-light emission can be realized by combining the emission of Eu2+ and Mn2+ in a single host lattice under UV light excitation. The obtained phosphor exhibits a strong excitation band between 250 and 420 nm, matching well with the dominant emission band of a UV light-emitting-diode (LED) chip, which could be a promising candidate for UV-converting white-light-emitting diodes (LEDs). (C) 2013 Elsevier B.V. All rights reserved.
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收藏
页码：100 / 104
页数：5
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