| YVO_4:Eu~(3+),Bi~(3+)纳米荧光粉沉淀合成及发光性质 |
| |
| 引用本文： | 钱仕兵,马永青.YVO_4:Eu~(3+),Bi~(3+)纳米荧光粉沉淀合成及发光性质[J].安徽大学学报(自然科学版),2012(6):31-35. |
| |
| 作者姓名： | 钱仕兵 马永青 |
| |
| 作者单位： | 安徽大学物理与材料科学学院,安徽省信息材料与器件重点实验室 |
| |
| 基金项目： | 国家自然科学基金资助项目(11174004);安徽省教育厅自然科学基金资助项目(KJ2010A012);安徽省信息材料与器件重点实验室开放基金资助项目;安徽大学“211工程”基金资助项目;安徽大学青年教师基金资助项目(2009QN006A) |
| |
| 摘 要： | 采用沉淀法合成YVO4:Eu3+,Bi3+纳米晶.研究掺杂不同Bi3+浓度的YVO4:Eu3+纳米荧光粉在不同温度下的性质.分别采用X射线衍射仪、扫描电子显微镜及荧光光谱仪对荧光粉的结构、形貌和发光性能进行测试.结果表明:合成的荧光粉均为四方相YVO4,形貌呈规则的形状.Bi3+掺杂没有改变荧光粉的形貌.特征发射峰来自于Eu3+的5D0→7FJ跃迁,Bi3+掺杂改变了激发谱峰位,而且使得激发带有一定程度的展宽,同时Bi3+对Eu3+有敏化作用,在适量的浓度范围内纳米荧光粉的发光强度增强.
|
| 关 键 词： | 沉淀法 YVO Eu+ Bi+掺杂 纳米荧光粉 |
Synthesis of YVO4:Eu3+,Bi3+ nanophosphors by a coprecipitation method and luminescence properties |
| |
| QIAN Shi-bing,MA Yong-qing.Synthesis of YVO4:Eu3+,Bi3+ nanophosphors by a coprecipitation method and luminescence properties[J].Journal of Anhui University(Natural Sciences),2012(6):31-35. |
| |
| Authors: | QIAN Shi-bing MA Yong-qing |
| |
| Institution: | *(School of Physics and Material Science,Anhui Key Laboratory of Information Materials and Devices,Anhui University,Hefei 230039,China) |
| |
| Abstract: | YVO4:Eu3+,Bi3+ nanocrystals were synthesized by precipitation method.The properties of YVO4:Eu3+,Bi3+ nanophosphors with different Bi3+concentration and different temperature were studied.X-ray diffraction,scanning electron microscope and photoluminescence spectroscopy were used to characterize the crystal structure,shape and luminescent properties.Results indicated that all of the samples were tetragonal-structured YVO4 phase.The phosphors had regular shape and the morphology of phosphors did not change by doping Bi3+.The feature emission peaks were assigned to the transitions from the 5D0→7FJ of Eu3+.It changed the peak position of excitation spectrum of the phosphors and broadened excitation band.Bi3+ would be a photoluminescence intensifier for Eu3+ and it enhanced luminescence intensity of phosphors with a range of concentration. |
| |
| Keywords: | precipitation method YVO4:Eu3+ Bi3+ doping nanophosphor |
| 本文献已被 CNKI 等数据库收录！ |
