Synthesis and Photoluminescence Properties of CaAlSiN3:Eu2+ Nanocrystals
Synthesis and Photoluminescence Properties of CaAlSiN3:Eu2+ Nanocrystals
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DOI：
10.1246/cl.2010.104
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发表时间：
2010-02-05
影响因子：
1.6
通讯作者：
Hanzawa, Hiromasa
中科院分区：
文献类型：
--
作者：
Lei, Bingfu;Machida, Ken-ichi;Hanzawa, Hiromasa
以CaH2为钙源，采用固相法合成了纳米CaAlSiN3:Eu2+红色荧光粉。所得荧光粉结晶良好，粒径约为200 ~ 400 nm。结果表明，Eu2+离子的4f(7) -> 4f(6)5d跃迁产生的宽激发带延伸至600 nm，中心在450 nm，强发射带在660 nm处达到峰值。由于宿主体的刚性晶体结构，该荧光粉表现出较低的热猝灭性。
Nanosized CaAlSiN3:Eu2+ red phosphor was synthesized by solid-state reaction using CaH2, as calcium source. The obtained phosphor was well crystallized and the particle size was about 200-400 nm. It showed a broad excitation band originating from the 4f(7) -> 4f(6)5d transition of Eu2+ ion extending to 600 nm and centering at 450 nm, and a strong emission band peaking at 660 nm. This phosphor showed low thermal quenching due to the rigid crystal structure of the host.