发光学报2012，Vol.33Issue(5)：486-491,6.DOI:10.3788/fgxb20123305.0486
Pr3+,Yb3+共掺YPO4下转换材料的制备及其转光效率
Downconversion Materials Preparation and The Research of Conversion Efficiency in Pr3+ , Yb3+ Co-doped YPO4
摘要
Abstract
Pr3+ , Yb3+ co-doped YPO4 downconversion phosphor powders were prepared by solid state reaction. When excitation at 450 nm, the effects of different Yb3+ mole fractions (0% , 1% , 2% ,4% ,20% ,30% ) on the conversion efficiency are studied. Results shows that because of the difference of energy transfer efficiency between Pr3+ and Yb3+ , the samples with various Yb3+ doping concentrations have different fluorescence intensity. It is also found that the energy transfer process of the downconversion luminescence in samples is Pr3+ ;3P0-Yb3+:2F5/2 +2F5/2. From photoluminescence spectra measurement, the optimal doping mole fraction of Yb3* is 2%. The results indicate that Pr3+ , Yb3+ co-doped YPO4 downconversion phosphor is a kind of potential material which may be used to improve the solar cell efficency.关键词
下转换/稀土离子/YPO4/太阳能电池Key words
downconversion/ rare earth/ YPO4/ solar cells分类
数理科学引用本文复制引用
李开宇,王如志,曲铭浩,张影,严辉..Pr3+,Yb3+共掺YPO4下转换材料的制备及其转光效率[J].发光学报,2012,33(5):486-491,6.基金项目
国家自然科学基金(51032002,11074017,11174021) （51032002,11074017,11174021）
北京市“学术创新团队建设计划”项目(PHR201007101) （PHR201007101）
北京市科技新星计划(2008B10) （2008B10）
北京市自然科学基金(1102006) （1102006）
北京工业大学基础研究基金资助项目 （）
