物理学报2017，Vol.66Issue(10)：1-7,7.DOI:10.7498/aps.66.100201
BaY2ZnO5∶Tm3+/Yb3+荧光粉的试验优化设计合成及发光性质研究
Experimental optimal design on BaY2ZnO5∶ Tma+/Yb3+ phosphor and its up-conversion luminescence property
摘要
Abstract
To obtain a maximal blue up-conversion luminescence of Tm3+/Yb3+ co-doped BaY2ZnO5 phosphors,orthogonal experimental design combined with quadratic general rotary unitized design method is employed to optimize the Tm3+ and Yb3+ ions doping concentration.Two sets of BaY2ZnO5∶Tm3+/yb3+ phosphors are synthesized by the traditional high temperature solid reaction method.The doping concentration ranges of Tm3+ and Yb3+ are first narrowed by orthogonal experimental design,and then quadratic general rotary unitized design is performed and one regression equation is established based on the experimental results from the latter design.The theoretical maximum value of the blue up-conversion luminescence intensity and the optimal Tm3+ and Yb3+ doping concentrations are obtained by genetic algorithm.The optimal sample is synthesized and its crystal structure and up-conversion luminescence properties are investigated.It is found that the blue up-conversion luminescence originates from three photon processes under 980 nm excitation.Temperature dependent up-conversion luminescence spectra of the optimal sample show that the blue up-conversion luminescence intensity declines with increasing temperature,implying the occurrence of thermal quenching of up-conversion luminescence.The calculated excitation energy is about 0.602 eV.关键词
试验优化设计/BaY2ZnO5/Tm3+/Yb3+/温度猝灭Key words
experimental optimal design/BaY2ZnO5/Tm3+/Yb3+/temperature quenching引用本文复制引用
孙佳石,李香萍,吴金磊,李树伟,石琳琳,徐赛,张金苏,程丽红,陈宝玖..BaY2ZnO5∶Tm3+/Yb3+荧光粉的试验优化设计合成及发光性质研究[J].物理学报,2017,66(10):1-7,7.基金项目
国家自然科学基金(批准号:11374044,11274057)、中央高校基本科研业务费专项资金(批准号:3132017056,3132016333)、辽宁省自然科学基金(批准号:2015020190)和国家重点基础研究发展计划(批准号:2012CB626801)资助的课题.Project supported by the National Natural Science Foundation of China (Grant Nos.11374044,11274057),the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant Nos.3132017056,3132016333),the Natural Science Foundation of Liaoning Province,China (Grant No.2015020190),and the National Basic Research Program of China (Grant No.2012CB626801). （批准号:11374044,11274057）
