A novel green nanophosphor CaHPO4:Tb3+ was synthesized via a room-temperatureco-precipitation route driven by ethanol solvent. X-ray powder diffraction (XRD), scanningelectron microscopy (SEM) and photoluminesce...A novel green nanophosphor CaHPO4:Tb3+ was synthesized via a room-temperatureco-precipitation route driven by ethanol solvent. X-ray powder diffraction (XRD), scanningelectron microscopy (SEM) and photoluminescence spectroscopy (PL) techniques were utilizedto characterize the structure, morphology and fluorescence performance of the obtained powders.The results demonstrated that the prepared samples were well crystallized with triclinic phaseCaHPO4 structure and particle-like morphology. Photoluminescence measurements indicated thatCaHPOa:Tb3+ had a strong absorption peak at 370 nm and exhibited characteristic emissions withseveral sharp peaks corresponding to the transitions 5D4-7FJ (jr = 6-3) of Tb3+. Moreover, theluminescence optimum concentration for CaHPO4:Tb3+ was determined to be 11 mol%, whichmight be a promising green-emitting ohosohor for display applications.展开更多
基金supported by the National Natural Science Foundation of China(21663021)China Postdoctoral Science Foundation(2015M571977)+1 种基金the Natural Science Foundation of Jiangxi Province(20161BAB213058)the Natural Science Key Project of Jiangxi Province(2017ACB20040)
文摘A novel green nanophosphor CaHPO4:Tb3+ was synthesized via a room-temperatureco-precipitation route driven by ethanol solvent. X-ray powder diffraction (XRD), scanningelectron microscopy (SEM) and photoluminescence spectroscopy (PL) techniques were utilizedto characterize the structure, morphology and fluorescence performance of the obtained powders.The results demonstrated that the prepared samples were well crystallized with triclinic phaseCaHPO4 structure and particle-like morphology. Photoluminescence measurements indicated thatCaHPOa:Tb3+ had a strong absorption peak at 370 nm and exhibited characteristic emissions withseveral sharp peaks corresponding to the transitions 5D4-7FJ (jr = 6-3) of Tb3+. Moreover, theluminescence optimum concentration for CaHPO4:Tb3+ was determined to be 11 mol%, whichmight be a promising green-emitting ohosohor for display applications.