Control of chromaticity by phosphor in glasses with low temperature sintered silicate glasses for LED applications
Control of chromaticity by phosphor in glasses with low temperature sintered silicate glasses for LED applications
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DOI：
10.1364/ol.39.004084
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发表时间：
2014-07-15
期刊：
影响因子：
3.6
通讯作者：
Chung, Woon Jin
中科院分区：
文献类型：
--
作者：
Lee, Yl Kwon;Kim, Yoon Hwa;Chung, Woon Jin
用Y3 Al 5 O 12：Ce 3+（黄色）和CaAlSiN 3：Eu 2+（红色）荧光粉的混合物制造了用于LED应用的玻璃中荧光粉（PiG）颜色转换器。SiO2-Na 2 O-RO（R = Ba，Zn）玻璃粉末的低烧结温度（550 ℃）使得能够包含CaAlSiN 3：Eu 2+（红色）磷光体，其不能用用于PiG的常规玻璃粉末包埋。通过简单地改变玻璃与磷光体的混合比以及黄色磷光体与红色磷光体的比例，已经实现了遵循普朗克轨迹的LED的CIE色度坐标和相关色温的容易控制。磷光体在玻璃基质内均匀分布，没有明显的反应，与具有有机硅树脂的那些相比，保持了PiG用于LED的增强的热猝灭特性。(C)2014年美国光学学会
Phosphor-in-glass (PiG) color converters for LED applications were fabricated with a mixture of phosphors, Y3Al5O12:Ce3+ (yellow) and CaAlSiN3:Eu2+ (red). The low sintering temperature (550 degrees C) of SiO2-Na2O-RO (R = Ba, Zn) glass powder enabled the inclusion of CaAlSiN3:Eu2+ (red) phosphor which cannot be embedded with conventional glass powders for PiGs. By simply varying the mixing ratio of glass to phosphors as well as the ratio of yellow to red phosphors, the facile control of the CIE chromaticity coordinates and correlated color temperature of the LED following the Planckian locus has been achieved. Phosphors were well distributed within the glass matrix without noticeable reactions, preserving the enhanced thermal quenching property of the PiG compared to those with silicone resins, for LEDs. (C) 2014 Optical Society of America