| CaSnO_3:Eu~(3+)荧光粉的制备及其发光性能研究 |
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| 引用本文： | 陈洁,柴飞,张汉焱,周涛.CaSnO_3:Eu~(3+)荧光粉的制备及其发光性能研究[J].汕头大学学报(自然科学版),2008,23(2):32-35. |
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| 作者姓名： | 陈洁 柴飞 张汉焱 周涛 |
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| 作者单位： | 汕头大学物理系,广东汕头,515063 |
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| 摘 要： | 利用高温固相反应法制备CaSnO3:Eu3+发光体,采用X射线衍射(XRD)技术和荧光光谱等测试手段对样品进行研究.结果表明:Eu3+离子的掺杂未改变CaSnO3的晶体结构;Ca1-xEuxSnO3样品的发射以电偶极跃迁5D0-7F2为主,在紫外光照射下产生强的红光发射;Ca1-xEuxSnO3样品在240～340 nm范围内存在Eu3+-O2-电荷迁移吸收带,随着Eu3+掺杂浓度x的增加,吸收带峰位从276 nm红移到281 nm附近.
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| 关 键 词： | CaSnO3E∶u3+ 光致发光 固相反应法 |
| 文章编号： | 1001-4217(2008)02-0032-03 |
| 修稿时间： | 2007年8月13日 |
Preparation and Spectral Properties of CaSnO3:Eu3+ Phosphor |
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| CHEN Jie,CHAI Fei,ZHANG Han-yan,ZHOU Tao.Preparation and Spectral Properties of CaSnO3:Eu3+ Phosphor[J].Journal of Shantou University(Natural Science Edition),2008,23(2):32-35. |
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| Authors: | CHEN Jie CHAI Fei ZHANG Han-yan ZHOU Tao |
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| Institution: | (Department of Physics, Shantou University, Shantou 515053, Gnangdong, China) |
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| Abstract: | CaSnO3： Eu^3＋ powder samples with various Eu^3＋ were prepared by a solid state reaction method and their characteristics were investigated by the use of XRD and fluorescence spectra. The XRD results show that the crystal structure of Eu^3＋ doped CaSnO3 is the same as that of CaSnO3. Under UV excitation, the CaSnO3：Eu phosphor exhibits red emission which is assigned to the 5D0-^7F2 electric-dipole transition. The excitation spectra of Ca1-xEuxSnO3 shows Eu^3＋-O^2- charge-transfer bands（240-340nm） with the maximum changing from 276nm to 281 nm by increasing the Eu^3＋ concentration （x = 0.005-0.03） . |
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| Keywords: | CaSnO3：Eu^3＋ photoluminescence solid state reaction |
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