Self-assembly and modified luminescence properties of NaY(MoO4)2:Tb3+, Eu3+ inverse opals

被引：26
|
作者：
Cui, Shaobo [1 ,2 ]
Zhu, Yongsheng [1 ,2 ]
Xu, Wen [1 ]
Zhou, Pingwei [1 ]
Xia, Lei [1 ]
Chen, Xu [1 ]
Song, Hongwei [1 ]
Han, Wei [2 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
[2] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China
来源：
DALTON TRANSACTIONS | 2014年 / 43卷 / 35期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
MODIFIED SPONTANEOUS EMISSION; INHIBITED SPONTANEOUS EMISSION; ORGANIC-INORGANIC HYBRIDS; ENERGY-TRANSFER; QUANTUM DOTS; CRYSTAL; DYNAMICS; COLOR; ER3+;
D O I：
10.1039/c4dt01792g
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Three-dimensional (3D) inverse opal photonic crystals can not only modulate the emissions of the inserted emitters, they also have the advantage of a large surface to volume ratio, which permits their use in non-invasive fluorescence detection. In this work, novel NaY(MoO4)(2):Eu3+ and NaY(MoO4)(2):Tb3+, Eu3+ inverse opals were synthesized using a polymethylmethacrylate (PMMA) template by the sol-gel method. It was observed that the photoluminescence (PL) intensity and spontaneous decay rates (SDRs) of the inverse opals were suppressed, in contrast to the corresponding ground reference (REF) samples, due to the modulation of the effective refractive index (n(eff)). The concentration quenching of Eu3+ and energy transfer from Tb3+ to Eu3+ were suppressed, due to the periodic empty cavity structure of the inverse opals.
引用
收藏
页码：13293 / 13298
页数：6
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