Achieving efficient Tb3+ dual-mode luminescence via Gd-sublattice-mediated energy migration in a NaGdF4 core-shell nanoarchitecture

被引：66

作者：

Ding, Mingye ^{[1
]}

Chen, Daqin ^{[1
]}

Wan, Zhongyi ^{[1
]}

Zhou, Yang ^{[1
]}

Zhong, Jiasong ^{[1
]}

Xi, Junhua ^{[1
]}

Ji, Zhenguo ^{[1
]}

机构：

[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2015年 / 3卷 / 21期

基金：

中国国家自然科学基金;

关键词：

DOPED NAYF4 NANOCRYSTALS; UP-CONVERSION NANOPARTICLES; CORE/SHELL NANOCRYSTALS; FLUORIDE NANOCRYSTALS; ENHANCED LUMINESCENCE; ROOM-TEMPERATURE; IN-VIVO; EMISSION; STRATEGY; DESIGN;

D O I：

10.1039/c5tc00881f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A strategy to realize dual-mode luminescence from identical Tb3+ is provided via Gd-sublattice-mediated energymigration and core-shell engineering techniques. By optimizing the structure of a NaGdF4:Yb/Tm@NaGdF4:Ce/Tb nanoarchitecture, both upconversion and downshifting emissions, originating from D-5(4) -> F-7(6,5,4,3) transitions of Tb3+, are achieved through Yb3+ -> Tm3+ -> [Gd3+](n) -> Tb3+ and Ce3+ -> [Gd3+](n) -> Tb3+ energy transfer processes, respectively.

引用

页码：5372 / 5376

页数：5

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