Photoluminescence properties of green-emitting Eu2+-activated Ba3Si6O12N2 oxynitride phosphor for white LED applications

被引：36
|
作者：
Song, Y. H. [1 ]
Choi, T. Y. [1 ]
Senthil, K. [1 ]
Masaki, T. [1 ]
Yoon, D. H. [1 ]
机构：
[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea
来源：
MATERIALS LETTERS | 2011年 / 65卷 / 23-24期
关键词：
Oxynitride phosphor; White LEDs; Concentration quenching; CA-ALPHA-SIALON; LUMINESCENCE PROPERTIES; EMISSION; ENHANCEMENT; YELLOW;
D O I：
10.1016/j.matlet.2011.07.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Eu2+-activated Ba3Si6O12N2 green-emitting phosphors were synthesized by a solid-state reaction method. X-ray diffraction patterns showed that the synthesized phosphor sintered at 1200 degrees C for 12 h was a Ba3Si6O12N2 pure phase. The synthesized phosphors were excited in UV to blue light. The emission spectra showed a broad green emission band when excited with a light at 465 nm. The highest emission intensity was observed at a Eu2+ concentration of 0.25 mol and the NH4Cl concentration of the optimized flux was found to be 9 wt.%. The obtained green-emitting Ba3Si6O12N2: Eu2+ phosphors could be applied to white LED applications. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：3399 / 3401
页数：3
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