摘要
High quality and monodispersed ScVO4 microcrystals were successfully synthesized via a mild hydrothermal route using NH4VO3 as vanadium source. The X-ray power diffraction（XRD） and field-emission scanning electron microscopy（FE-SEM） results indicated that the size, shape, and phase formation of the ScVO4 microcrystals could be tuned by altering the reaction temperature, reaction time, and p H value of the initial solution. Furthermore, the down- and upconversion luminescence of ScVO4：Ln（Ln=Eu, Dy, Sm, Yb/Ho, Yb/Er, and Yb/Tm） microcrystals were characterized and the respective energy transfer processes were also discussed. The experimental results demonstrated that reactions at 200 oC, 24 h, and pH=6 could generate perfect ScVO4 microcrystals, which were then used for luminescence studies.
High quality and monodispersed ScVO4 microcrystals were successfully synthesized via a mild hydrothermal route using NH4VO3 as vanadium source. The X-ray power diffraction（XRD） and field-emission scanning electron microscopy（FE-SEM） results indicated that the size, shape, and phase formation of the ScVO4 microcrystals could be tuned by altering the reaction temperature, reaction time, and p H value of the initial solution. Furthermore, the down- and upconversion luminescence of ScVO4：Ln（Ln=Eu, Dy, Sm, Yb/Ho, Yb/Er, and Yb/Tm） microcrystals were characterized and the respective energy transfer processes were also discussed. The experimental results demonstrated that reactions at 200 oC, 24 h, and pH=6 could generate perfect ScVO4 microcrystals, which were then used for luminescence studies.
作者
徐水林
谢小吉
赵宝洲
聂溧
潘岳
苏海全
黄岭
黄维
XU Shuilin XIE Xiaoji ZHAO Baozhou NIE Li PAN Yue SU Haiquan HUANG Ling HUANG Wei(Key Laboratory of Flexible Electronics （KLOFE） Institute of Advanced Materials （IAM）, Jiangsu National Synergetic Innovation Center for Advanced Mate- rials （S1CAM）, Nanjing Tech University （NanjingTech）, Nanjing 211816, China School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010022, China)
基金
Project supported by the National Natural Science Foundation of China(21371095)
the Natural Science Foundation of Jiangsu Province(BK20131404,BL2014075)
the Ministry of Education Doctoral Fund(20133221110004)
