| 白光LED用红色荧光粉MMoO4:Eu3+（M=Ca,Sr,Ba）的制备与表征 |
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| 引用本文： | 耿秀娟,陈永杰,肖林久,谢颖,王趱,杨英. 白光LED用红色荧光粉MMoO4:Eu3+（M=Ca,Sr,Ba）的制备与表征[J]. 化工新型材料, 2012, 40(2): 65-67 |
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| 作者姓名： | 耿秀娟 陈永杰 肖林久 谢颖 王趱 杨英 |
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| 作者单位： | 1. 沈阳化工大学,沈阳110142;东北大学材料与冶金学院,沈阳110004
2. 沈阳化工大学,沈阳,110142 |
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| 基金项目： | 沈阳市科技计划，辽宁省教育厅科研项目计划 |
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| 摘 要： | 采用高温固相法制备了红色荧光粉MMoO4:Eu3+(M=Ca,Sr,Ba),用XRD和荧光分光光度计对其物相及发光性能进行表征和研究。结果表明,在800℃时可得到MMoO4(M=Ca,Sr,Ba)物相结构。分别以395nm的近紫外光和465nm的可见光激发样品,MMoO4:Eu3+(M=Ca,Sr,Ba)荧光粉发红光,对应于Eu3+的4f-4f跃迁,其中以616nm发光最强。荧光粉在395nm和465nm的吸收分别与紫外光和蓝光LED芯片相匹配。
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| 关 键 词： | 红色荧光粉 钼酸盐 白光LED |
Preparation and characterization of MMoO4 : Eu3+ (M=Ca, Sr, Ba)red phosphor for white LEDs |
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| Geng Xiujuan , Chen Yongjie , Xiao Linjiu , Xie Ying , Wang Zan , Yang Ying. Preparation and characterization of MMoO4 : Eu3+ (M=Ca, Sr, Ba)red phosphor for white LEDs[J]. New Chemical Materials, 2012, 40(2): 65-67 |
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| Authors: | Geng Xiujuan Chen Yongjie Xiao Linjiu Xie Ying Wang Zan Yang Ying |
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| Affiliation: | 1(1.Shenyang University of Chemical Technology,Shenyang 110142; 2.China School of Materials and Metallurgy,Northeastern University,Shenyang 110004) |
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| Abstract: | The red phosphor MMoO4:Eu3+(M=Ca,Sr,Ba) was prepared by high temperature solid-state method.The crystalline phase and luminescence characteristics of the phosphor particles were characterized by X-ray diffractometer(XRD) and fluorophotometer.The results showed that the phosphor is with MMoO4(M=Ca,Sr,Ba) crystalline phase at 800℃ temperature.Upon excitation with 395 nm and 465 nm light,all the MMoO4:Eu3+(M=Ca,Sr,Ba) phosphors showed bright red emission due to the 4f-4f transitions of Eu3+ ions,and the highest photoluminescence intensity at 616 nm was found.The excitation and emission spectra showed that this phosphor could be effectively excited by ultraviolet(395nm) and blue light(465nm). |
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| Keywords: | red phosphor molybdate white LED |
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