陕西科技大学学报（自然科学版）Issue(5)：40-45,6.
柠檬酸辅助合成NaLa（MoO4）2：Eu3＋及其发光性能
Citric acid-assisted synthesis of NaLa(MoO4)2：Eu3+phosphors and luminescence properties
摘要
Abstract
Eu3+‐doped NaLa (MoO4 )2 red phosphors were prepared via a citric acid‐assisted hydrothermal process and the samples were annealed at 600 ℃ for two hours .The asprepared products were characterized by X‐ray diffraction (XRD) ,field emission‐scanning electron mi‐croscopy (FE‐SEM ) and photoluminescence (PL ) ,respectively .The results demonstrated that the obtained NaLa(MoO4 )2 :Eu3+ phosphors are pure tetragonal phase of which the e‐mission intensity enhanced with the increasing of Eu3+ doping concentration .Moreover ,the charge transfer band shift to the red with broadening of its peak ,and the optimum Eu3+ do‐ping concentration for obtaining maximum emission intensity was confirmed to be 50% .In addition ,the phosphor can be effectively excited by 280 nm ,395 nm and 465 nm .All com‐pounds exhibit strong luminescence emissions of 5 D0 → 7 F2 transition at 617 nm .Chromaticity coordinates of NaLa(MoO4 )2 :Eu3+ are stable and fit well with the standard red color coordi‐nate .The results indicate that NaLa(MoO4 )2 :Eu3+ is a wide used red‐emitting phosphors with good stability .关键词
NaLa(MoO4)2:Eu3+/柠檬酸/水热合成/发光性能Key words
NaLa(MoO4 )2：Eu3+/citric acid/hydrothermal synthesis/luminescence proper-ties引用本文复制引用
刘运,高伟萍,史晓磊,罗超,左浩强..柠檬酸辅助合成NaLa（MoO4）2：Eu3＋及其发光性能[J].陕西科技大学学报（自然科学版）,2015,(5):40-45,6.基金项目
国家自然科学基金项目（51272148）；陕西省科技厅自然科学基础研究计划项目 （）
