| Eu2+激活的M7Mg2(SiO4)4C12(M=Ca,Sr,Ba)荧光性质的研究 |
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| 引用本文： | 吴 茜,陈永杰,曹发斌,李郎楷,杨 英.Eu2+激活的M7Mg2(SiO4)4C12(M=Ca,Sr,Ba)荧光性质的研究[J].稀有金属材料与工程,2010,39(4):664-667. |
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| 作者姓名： | 吴 茜 陈永杰 曹发斌 李郎楷 杨 英 |
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| 作者单位： | 沈阳化工学院,辽宁,沈阳,110142 |
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| 基金项目： | 辽宁省教育厅基金，沈阳市科技计划 |
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| 摘 要： | 采用高温固相法合成Eu2+激活的碱土金属氯硅酸盐系荧光粉M7Mg2(SiO4)4C12:0.08Eu2+(M=Ca,Sr,Ba),研究了它们的荧光光谱。结果表明,3种荧光粉均为宽带激发,激发带位置分别在250～500nm、250～450nm、250～430nm。讨论了Eu2+离子的跃迁发射随基质组成的变化规律,随着Ca、Sr、Ba离子半径的依次增大,发射波长逐渐向短波方向移动,分别产生绿(507nm)、蓝(458、445nm)不同颜色的发射光。
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| 关 键 词： | 二价铕 氯硅酸盐 碱土金属 |
| 收稿时间： | 2009/4/20 0:00:00 |
| 修稿时间： | 2010/1/25 0:00:00 |
Study on Luminescence Properties of M7Mg2(SiO4)4C12 (M=Ca, Sr, Ba) Activated by |
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| Wu Qian,Chen Yongjie,Cao Fabin,Li Langkai and Yang Ying.Study on Luminescence Properties of M7Mg2(SiO4)4C12 (M=Ca, Sr, Ba) Activated by[J].Rare Metal Materials and Engineering,2010,39(4):664-667. |
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| Authors: | Wu Qian Chen Yongjie Cao Fabin Li Langkai and Yang Ying |
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| Affiliation: | Shenyang Institute of Chemical Technology, Shenyang 110142, China |
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| Abstract: | The alkaline earth metal magnesium chlorosilicate M7Mg2(SiO4)4C12:0.08Eu2+(M=Ca,Sr,Ba) phosphors activated by Eu2+ were synthesized by high-temperature solid-state reaction, and the luminescence properties of the phosphors were studied. Results show that all the three phosphors have broadband excitation spectra with ranges of 250-500 nm, 250-450 nm, 250-430 nm, respectively. The composition dependence of the radiation transitions of Eu2+ in the host was discussed. The position of emission peak of Eu2+ moved to short-wavelength and the phosphors emit green (507 nm) and blue (458 nm, 445 nm) light with increasing of radius size of Ca, Sr and Ba ions in sequence |
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| Keywords: | divalent europium chlorosilicate alkaline earth metals |
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