As an emerging host phosphor material, barium chlorapatite （Bas（PO4）3CI）, is attracting growing attention. However, rare earth-doped Bas（PO4）3CI phosphors have mainly been obtained via high temperature-based, en...As an emerging host phosphor material, barium chlorapatite （Bas（PO4）3CI）, is attracting growing attention. However, rare earth-doped Bas（PO4）3CI phosphors have mainly been obtained via high temperature-based, energy-consuming techniques. In this contribution, we developed a straight- forward, facile room-temperature coprecipitation method in the presence of a specific amount of ethylenediaminetetraacetic acid disodium salt that provided Bas（PO4）3CI nanoparticles self-assembled to construct uniform Bas（PO4）3CI nanoassemblies （diameter： 80-120 nm） as well as rare earth Tb3＋- doped Bas（PO4）3CI：xTb3＋ nanophosphors. The nanoassemblies were transparent within the ultraviolet and visible spectral range. The Bas（PO4）3CI：xTb3＋ nanophosphors exhibited four emission peaks under 228-nm excitation, and the optimal doping amount of Tb3＋ was 4.0%. In contrast to traditional energy-consuming, high-temperature techniques, the facile room-temperature coprecipitation method developed here represents an attractive alternative route to obtain uniform Ba5（PO4）3CI nanoassemblies and Bas（PO4）3CI：xTb3＋ nanopbosphors that are candidate luminescent hosts.展开更多
基金This work was supported by the National Natural Science Foundation of China （No. 21276141） and the State Key Laboratory of Chemical Engineering, China （No. SKL-ChE-15A03）.
文摘As an emerging host phosphor material, barium chlorapatite （Bas（PO4）3CI）, is attracting growing attention. However, rare earth-doped Bas（PO4）3CI phosphors have mainly been obtained via high temperature-based, energy-consuming techniques. In this contribution, we developed a straight- forward, facile room-temperature coprecipitation method in the presence of a specific amount of ethylenediaminetetraacetic acid disodium salt that provided Bas（PO4）3CI nanoparticles self-assembled to construct uniform Bas（PO4）3CI nanoassemblies （diameter： 80-120 nm） as well as rare earth Tb3＋- doped Bas（PO4）3CI：xTb3＋ nanophosphors. The nanoassemblies were transparent within the ultraviolet and visible spectral range. The Bas（PO4）3CI：xTb3＋ nanophosphors exhibited four emission peaks under 228-nm excitation, and the optimal doping amount of Tb3＋ was 4.0%. In contrast to traditional energy-consuming, high-temperature techniques, the facile room-temperature coprecipitation method developed here represents an attractive alternative route to obtain uniform Ba5（PO4）3CI nanoassemblies and Bas（PO4）3CI：xTb3＋ nanopbosphors that are candidate luminescent hosts.
