欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用水热法合成了不同粒径的NaLa（MoO4）2∶Eu3＋微晶.通过调节乙二醇浓度和反应时间,研究了NaLa（MoO4）2∶Eu3＋微晶的形貌演变过程,在水热条件下180℃反应16h获得了均一梭子形NaLa（MoO4）2∶Eu3＋微晶,其晶粒长度约为2.0μm.荧光光谱分析表明,Eu3＋取代了NaLa（MoO4）2中La3＋的格位,Eu3＋在613nm处红光发射（5D0—7F2跃迁）的浓度猝灭机理是电偶极-电四极相互作用,并发生了Eu3＋（5D1）＋Eu3＋（7F0）→Eu3＋（5D0）＋Eu3＋（7F3）交叉弛豫,由此导致浓度猝灭.
英文摘要：
Eu3＋ doped NaLa（MoO4）2 microcrystals with different sizes are synthesized by a mild hydrothermal method,and the morphologies of the microcrystals can be easily controlled by adjusting the volume ratio of ethylene glycol to water and the aging time.Uniform high-quality shuttle-like microcrystals with an average length of 2.0 μm are obtained under the hydrothermal condition of 180℃ for 16 h.From the emission spectra of NaLa（MoO4）2：Eu3＋ microcrystals,it is concluded that the dopant Eu3＋ ion occupies a La3＋ site.It is indicated that the concentration quenching of the emission peak at 613 nm of Eu3＋ is ascribed to the electric dipole-electric quadrupole interaction,and the cross relaxation process of Eu3＋（5D1） ＋ Eu3＋（7F0）→ Eu3＋（5D0） ＋ Eu3＋（7F3） appear.
同期刊论文项目
同项目期刊论文
Hydrothermal synthesis and the enhanced blue upconversion luminescence of NaYF(4):Nd(3+),Tm(3+),Yb(3
Luminescent properties of LiBaPO(4):RE (RE = Eu(2+), Tb(3+), Sm(3+)) phosphors for white light-emitt
Template-free hydrothermal synthesis of SrSO(4):Sm(3+) microrods and its electron trapping luminesce
Synthesis of well oil-dispersible BaYF(5):Yb(3+)/Er(3+) nanocrystals with green upconversion fluores
Effect of trivalent rare earth ions doping on the fluorescence properties of electron trapping mater
Hydrothermal synthesis of SrF(2):Yb(3+)/Er(3+) micro-/nanocrystals with multiform morphologies and u
Size and shape controllable synthesis of oil-dispersible BaYF(5):Yb(3+)/Er(3+) upconversion fluoresc
Luminescence properties of a new red emitting Eu(3+)-doped alkaline-earth fluoborate phosphor: BaCa(
Photoluminescence studies on a new red emitting Sm(3+)-doped alkaline-earth vanadate phosphor: Ca(3)
Hydrothermal synthesis of BaYF(5):Yb(3+)/Er(3+) upconversion luminescence submicrospheres by a surfa
Facile synthesis of well-dispersed SrF2:Yb3+/Er 3+ upconversion nanocrystals in oleate complex syste
Structure and upconversion luminescence properties of BaYF 5:Yb3+, Er3+ nanoparticles prepared by di
Hydrothermal synthesis of SrF2:Yb3+/Er3+ micro-/nanocrystals with multiform morphologies and upconve
Synthesis of well oil-dispersible BaYF5:Yb3+/Er 3+ nanocrystals with green upconversion fluorescence
Controllable multicolor upconversion luminescence of lanthanide doped NaGdF4 nanocrystals through si
Luminescence properties of a new red emitting Eu3+-doped alkaline-earth fluoborate phosphor: BaCa(1-
Hydrothermal synthesis of BaYF5:Yb3+/Er3+ upconversion luminescence submicrospheres by a surfactant-
期刊信息
位置：