title: Facile synthesis and color-tunable properties of BaLuF5:Ce,Tb,Eu(Sm) submicrospheres via a facile ionic liquid/EG two-phase system.
abstract: BaLuF5:Ce,Tb,Eu(Sm) submicrospheres were synthesized via an ILs/ethylene glycol(EG) two-phase system. The crystalline phase, size, morphology, and luminescence properties were characterized using powder X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), photoluminescence (PL) spectra. The results show that 1-methyl-3-octylimidazolium hexafluorophosphate ([Omim]PF6) was used as fluoride source and capping agent to tune morphology and size of the crystals. The formation mechanism has been supposed. Under the excitation of ultraviolet, the BaLuF5:5%Ce3+,5%Tb3+, BaLuF5:Eu3+, and BaLuF5:5%Ce3+,5%Sm3+exhibit green and red emission, which was derived from Tb3+, Eu3+, and Sm3+emission. When codoping Ce3+, Tb3+, Sm3+or Eu3+together, multi-color emission can be realized. Furthermore, this synthetic route may have potential applications for fabricating other lanthanide fluorides.
authors: College of Chemistry, Jilin University, 130012, PR China. Electronic address: yhsong@jlu.edu.cn.
authors: Yanhua
authors: Y
authors: Song
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Yi
authors: Y
authors: Li
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Tianqi
authors: T
authors: Zhao
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Yuexin
authors: Y
authors: Wang
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Tingting
authors: T
authors: Cui
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Ye
authors: Y
authors: Sheng
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Keyan
authors: K
authors: Zheng
authors: College of Chemistry, Jilin University, 130012, PR China.
authors: Xiuqing
authors: X
authors: Zhou
authors: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022, PR China.
authors: Hongpeng
authors: H
authors: You
authors: College of Chemistry, Jilin University, 130012, PR China. Electronic address: zouhf@jlu.edu.cn.
authors: Haifeng
authors: H
authors: Zou
keywords: BaLuF(5); Color-tunable properties; Ionic liquid; Two-phase system