Synthesis and luminescent properties of Sr4Al14O25:Eu2+ blue–green emitting phosphor for white light-emitting diodes (LEDs)
Synthesis and luminescent properties of Sr4Al14O25:Eu2+ blue–green emitting phosphor for white light-emitting diodes (LEDs)
复制标题
白光发光二极管(LED)用Sr4Al14O25:Eu2+蓝绿光荧光粉的合成及发光性能
DOI：
10.1007/s10854-007-9325-2
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Q. Su
中科院分区：
文献类型：
--
作者：
Zhan;Jianxin Shi;Jing Wang;M. Gong;Q. Su
An efficient blue–green emitting phosphor, Sr4Al14O25:Eu2+, was prepared by solid-state reaction. X-ray powder diffraction (XRD) analysis confirmed the formation of Sr4Al14O25:Eu2+. Field-emission scanning electron-microscopy (FE-SEM) observation indicated that the microstructure of the phosphor consisted of irregular fine grains with an average size of about 8–10μm. Photoluminescence measurements showed a broad absorption band between 300 and 450 nm which was efficiently excited by near-ultraviolet (NUV) LEDs (350–410 nm) and a strong emission band peaking at 491 nm. A bright blue–green LED with chromatic coordination (0.176, 0.412) was fabricated by incorporating the phosphor with an InGaN-based NUV chip, which indicates that Sr4Al14O25:Eu2+is a good candidate phosphor for application in white LEDs.
影响因子：
4
作者：
NAKAMURA, S;MUKAI, T;SENOH, M
通讯作者：
SENOH, M