Emission color variation of (Ba,Sr)3BP3O12:Eu2+ phosphors for white light LEDs

被引：66

作者：

Kuo, Te-Wen ^{[1
,2
]}

Liu, Wei-Ren ^{[3
]}

Chen, Teng-Ming ^{[1
,2
]}

机构：

[1] Natl Chiao Tung Univ, Phosphors Res Lab, Hsinchu 30010, Taiwan

[2] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan

[3] Ind Technol Res Inst, Mat & Chem Res Labs, Hsinchu 31014, Taiwan

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 03期

关键词：

RARE-EARTH IONS; EMITTING DIODES; ENERGY TRANSFER; BOROPHOSPHATE; ILLUMINATION; LUMINESCENCE; EU2+; 1ST;

D O I：

10.1364/OE.18.001888

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A series of alkaline earth borophosphate phosphors, (Ba,Sr)(3)BP3O12 doped with Eu2+ ions, were synthesized by a solid state reaction. Two emission bands at 465 nm and 520 nm were attributed to the f-d transitions of doped Eu2+ ions occupying in two different cation sites in host lattices and emission color variation was observed by substituting the M2+ sites, which was rationalized in terms of two competing factors of the crystal field strength and bond covalence. Green and bluish-white pc-LEDs were fabricated by combination of a 370 nm near-UV chip and composition-optimized Ba3BP3O12:Eu2+ and (Ba,Sr)(3)BP3O12:Eu2+ phosphors, respectively. The series of phosphors may serve as a promising green and bluish-white luminescent materials used in fabrication of near UV-based white pc-LEDs. (C) 2010 Optical Society of America

引用

页码：1888 / 1897

页数：10

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