| BaMoO4:Eu3+发光材料的制备及光谱特性研究 |
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| 引用本文： | Qiu GM,Xu CK,Huang C. BaMoO4:Eu3+发光材料的制备及光谱特性研究[J]. 光谱学与光谱分析, 2011, 31(5): 1200-1203. DOI: 10.3964/j.issn.1000-0593(2011)05-1200-04 |
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| 作者姓名： | Qiu GM Xu CK Huang C |
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| 作者单位： | 1. 汕头大学理学院物理系,广东汕头,515063
2. 衡阳师范学院物理与电子信息科学系,湖南衡阳,421008 |
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| 摘 要： | 利用高温固相法制备了BAMoO4:Eu3+发光材料,采用X射线衍射(XRD)和荧光光谱仪对样品进行测试.结果表明,在800℃时得到BaMoO4纯相,属四方晶系.激发光谱由一个宽带和处在350nm后的若干个线状谱组成,宽带归属于Eu3+-O2-电荷迁移吸收带(CT),线状谱属于Eu3+的f--f激发跃迁吸收.发射光谱由5D0-7F1(591 nm),5D0-7F2(615 nn),5D0-7F3(654 nm)和5D0-7F4(702 nm)四组峰组成,其红光5D0-7F2辐射跃迁发射最强,对应EU3+的电偶极跃迁.
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| 关 键 词： | 发光材料 光致发光 |
Synthesis and luminescent characteristic of BaMoO4:Eu3+ |
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| Qiu Gui-ming,Xu Cheng-ke,Huang Chong. Synthesis and luminescent characteristic of BaMoO4:Eu3+[J]. Spectroscopy and Spectral Analysis, 2011, 31(5): 1200-1203. DOI: 10.3964/j.issn.1000-0593(2011)05-1200-04 |
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| Authors: | Qiu Gui-ming Xu Cheng-ke Huang Chong |
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| Affiliation: | College of Science, Shantou University, Shantou 515063, China. gmqiu@stu.edu.cn |
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| Abstract: | The BaMoO4:Eu3+ phosphors were synthesized by solid-state method and were characterized by X-ray diffraction (XRD) and photoluminescence spectra. XRD analysis confirmed the formation of BaMoO4 at 800 degrees C and exhibited a tetragonal crystal structure. The excitation spectrum of samples showed one broad band and some peaks located behind 350 nm. The former was attributed to the charge transfer transition of Eu3+-O(2-), while the latter belonged to the f-f transitions of Eu3+ ions. The emission spectrum shows four peaks at 591, 615, 654 and 702 nm, respectively. The dominant peak is located at 615 nm due to the 5D0-7F2 electric dipole transition of Eu3+. |
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| Keywords: | BaMoO4:Eu3+ LED |
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