Synthesis and luminescent properties of Eu^(3+)-doped Na_(24)As_2W_(22)O_(83)  

作　　者：YANGShuijin YUANLiangjie SUNJutang 

机构地区：[1]DepartmentofChemistryandEnvironmentalEngineering,HubeiNormalUniversity,Huangshi435002,China [2]CollegeofChemistryandMolecularSciences,WuhanUniversity,Wuhan430072,China

出　　处：《Rare Metals》2003年第2期95-97,共3页稀有金属（英文版）

基　　金：This project is financially supported by the National Natural Science Foundation of China (No. 29971024) ; the Natural Science Foundation of Hubei Education Committee (No. 2002A00008)

摘　　要：The Eu^(3+)-doped Na^(24)As_2W_(22)O_83 phosphor has been prepared by solidstare reaction from Na_3AsO_4.12H_2O, Na_2WO_4.2H_2O and WO_3, and characterized by elementalanalysis, infrared spectroscopy and powder X-ray diffractometry. According to the measurements withX-ray diffraction, this material belongs to orthorhombic system with its lattice constants: avelence 1.4750 nm, b velence 1.1944 nm, c velence 1.1062 nm, it is consistent with space groupD_2~4-P2_12_12_1 (No.19). The emission and excitation spectra were measured. The luminescentproperties of Eu^(3+)-doped Na^(24)As_2W_(22)O_83 and mechanism of energy transfer were discussed.The Eu^(3+)-doped Na^(24)As_2W_(22)O_83 phosphor has been prepared by solidstare reaction from Na_3AsO_4.12H_2O, Na_2WO_4.2H_2O and WO_3, and characterized by elementalanalysis, infrared spectroscopy and powder X-ray diffractometry. According to the measurements withX-ray diffraction, this material belongs to orthorhombic system with its lattice constants: avelence 1.4750 nm, b velence 1.1944 nm, c velence 1.1062 nm, it is consistent with space groupD_2~4-P2_12_12_1 (No.19). The emission and excitation spectra were measured. The luminescentproperties of Eu^(3+)-doped Na^(24)As_2W_(22)O_83 and mechanism of energy transfer were discussed.

关 键 词：HETEROPOLYTUNGSTATE europium ion crystal structure SYNTHESIS LUMINESCENCE 

分 类 号：O614.613[理学—无机化学] TN104.3[理学—化学]