发光学报2018，Vol.39Issue(3)：259-265,7.DOI:10.3788/fgxb20183903.0259
近紫外光激发KBaGd(MoO4)3∶Dy3+荧光粉的制备及发光性能
Preparation and Luminescent Properties of Near UV Excited KBaGd(MoO4)3:Dy3+Phosphors
摘要
Abstract
KBaGd(MoO4)3:Dy3+phosphors were synthesized by sol-gel method,and their morphol-ogy,structure and spectral properties were investigated by means of SEM,XRD,excitation and lu-minescent spectra,as well as luminescent decay curves. The results show that the shape and the particle size distribution of samples synthesized by sol-gel method are more regular and narrower than those synthesized by solid state method. Under the excitation of near UV light(390 nm),the sam-ples exhibit two intensive emission bands around 485 nm and 577 nm,and the value of B/Y is about 0.7. In the host of KBaGd(MoO4)3,the optimum mole fraction of Dy3+is 10%, and the concen-tration quenching effect is caused by dipole-dipole interactions between Dy3+ions. The luminescent lifetime becomes shorter and the decay curves become nonexponential with the increasing of Dy3+concentration.关键词
钼酸盐/荧光粉/浓度猝灭/色坐标Key words
molybdate/phosphors/concentration quenching/color coordinate分类
数理科学引用本文复制引用
宋明君,王林同,张娜娜,任仰,李丹..近紫外光激发KBaGd(MoO4)3∶Dy3+荧光粉的制备及发光性能[J].发光学报,2018,39(3):259-265,7.基金项目
国家自然科学基金(51541205) （51541205）
山东省自然科学基金(ZR2014JL029,ZR2016BQ40,ZR2017BEE038)资助项目 Supported by National Natural Science Foundation of China(51541205) （ZR2014JL029,ZR2016BQ40,ZR2017BEE038）
Natural Science Foundation of Shandong Province(ZR2014JL029,ZR2016BQ40,ZR2017BEE038) （ZR2014JL029,ZR2016BQ40,ZR2017BEE038）
