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| ZnAl_2O_4:Eu~(3+)发光粉的制备与光谱研究 | |
| 引用本文： | 刘敏,许潮发,刘晓华,陈图峰.ZnAl_2O_4:Eu~(3+)发光粉的制备与光谱研究[J].汕头大学学报(自然科学版),2009,24(3):36-40. |
| 作者姓名： | 刘敏 许潮发 刘晓华 陈图峰 |
| 作者单位： | 1. 汕头大学物理系,广东,汕头,515063 2. 广东工业大学物理与光电工程学院,广东,广州,510000 3. 汕头大学中心实验室,广东,汕头,515063 |
| 摘 要： | 采用固相反应法(SSR)制备Eu3+掺杂的ZnAl2O4荧光粉,利用X射线衍射(XRD)、光致荧光光谱(PL)对样品进行表征.结果表明:Eu3+的掺杂浓度在不超过0.5 at.%时,样品呈现ZnAl2O4纯相尖晶石结构;样品Zn1-xAl2O4:xEu的激发光谱由200～350 nm的宽激发带和4个锐线谱(360、380、393和463 nm)两部分组成;ZnAl2O4:Eu3+荧光粉的发射光谱由Eu3+的5D0-7FJ(J=0～4)跃迁构成. |
| 关 键 词： | ZnAl2O4 Eu3+ 发光粉 |
Preparation and Photoluminescence of ZnAl2O4:Eu3+ Phosphor |
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| LIU Min,XU Chao-fa,LIU Xiao-hua,CHEN Tu-feng.Preparation and Photoluminescence of ZnAl2O4:Eu3+ Phosphor[J].Journal of Shantou University(Natural Science Edition),2009,24(3):36-40. | |
| Authors: | LIU Min XU Chao-fa LIU Xiao-hua CHEN Tu-feng |
| Institution: | LIU Min, XU Chcto-fa, LIU Xiao-hua, CHEN Tu-feng (1. Department of Physics, Shantou University, Shantou 515063, Guangdong, China; 2. School of Physics and Photo-Electronic Engineering, Guangdong University of Technology, Guangzhou 510000, Guangdong, China; 3. Central Laboratory of Shantou University, Shantou 515063, Guangdong, China) |
| Abstract: | ZnAl2O4 phosphors doped with Eu3＋ ions were prepared by the solid state reaction method. X-ray diffraction（XRD）, Photoluminescence（PL） measurements were used to characterize the samples. Analysis results showed that the sample structure keeps pure spinel phase up to the doping concentration of 0.005 of Eu^3＋. The excitation spectra of Zn1-xAl2O4： xEu phosphors consist of two wide excitation bands located within 200- 350 nm and four sharp peaks belong to the intra shell f-f transitons of Eu3＋ ions. The wide excitation bands within 200-350 nm relate to the charge transfer band and the host absorption. The emission spectra of the samples consist of 5D0-TFj（J= 0-4） transitions of Eu^3＋ ions. |
| Keywords: | ZnAl2O4 Eu3+ |
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