| 基质组分改变对燃烧法合成YAG:Ce3+微晶发光性能的影响 |
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| 引用本文： | 杨志平,李旭,李兴民,杨勇,李盼来.基质组分改变对燃烧法合成YAG:Ce3+微晶发光性能的影响[J].人工晶体学报,2007,36(1):191-194. |
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| 作者姓名： | 杨志平 李旭 李兴民 杨勇 李盼来 |
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| 作者单位： | 河北大学物理科学与技术学院,保定,071002;邯郸市信息产业局,邯郸,056038 |
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| 摘 要： | 利用燃烧法在较低温度下制备了白光LED用YAG:Ce3+微晶.通过XRD研究了它的构成,发现分别用B3+、Ga3+离子替代Al3+和La3+、Gd3+替代Y3+离子后晶格发生了改变;并通过SEM观察了荧光粉的形貌.测量了该材料的激发光谱和发射光谱,发射峰的位置和强度随基质的改变而变化.用其它离子替代Y3+或Al3+离子可有效地实现发射光谱的红移和蓝移,以适应不同情况对波长的需要.
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| 关 键 词： | 白光LED 燃烧法 YAG:Ce3+微晶 发射谱 |
| 文章编号： | 1000-985X（2007）01-0191-04 |
| 修稿时间： | 2006-08-11 |
Effect of Different Host on the Luminescent Property of YAG:Ce3+ Crystallite Formed by Combustion |
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| YANG Zhi-ping,LI Xu,LI Xing-min,YANG yong,LI Pan-lai.Effect of Different Host on the Luminescent Property of YAG:Ce3+ Crystallite Formed by Combustion[J].Journal of Synthetic Crystals,2007,36(1):191-194. |
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| Authors: | YANG Zhi-ping LI Xu LI Xing-min YANG yong LI Pan-lai |
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| Institution: | 1. College of Physics Science and Technology, Hebei University, Baoding 071002, China; 2. Handan Municipal Information Industry Bureau, Handan 056038, China |
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| Abstract: | YAG:Ce3 crystallite used for white LED was prepared by combustion method under low temperature.The crystal lattice was found changing when substituting B3 ,Ga3 for Al3 and La3 ,Gd3 for Y3 through XRD patterns.The morphology was observed by SEM.The excitation and emission spectra were measured and the emission peak changed with the host.Evident red shift or blue shift occurred when part or all of Y3 or Al3 ions were substituted by other ions,which can match different need for wavelength. |
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| Keywords: | white LED combustion method YAG:Ce3 crystallite emission spectrum |
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