Crystallinity effects and phase transition on upconversion emission of monodisperse NaGdF4:Yb, Er nanocrystals

被引：6
|
作者：
Wang, Jianxun [1 ]
Cheng, Chunyan [1 ]
De, Gejihu [1 ,2 ]
机构：
[1] Inner Mongolia Normal Univ, Coll Chem & Environm Sci, Hohhot 010022, Peoples R China
[2] Inner Mongolia Normal Univ, Phys & Chem Funct Mat, Hohhot 010022, Peoples R China
来源：
OPTICAL MATERIALS | 2019年 / 91卷
基金：
中国国家自然科学基金;
关键词：
Synthesis; NaGdF4:Yb; Er nanocrystals; Crystal phase; Upconversion luminescence; Crystallinity effects; SIZE; EFFICIENCY; STRATEGY; NANORODS;
D O I：
10.1016/j.optmat.2019.04.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of small and monodisperse Yb3+ -Er3+ co-doped alpha- and beta-NaGdF4 nanocrystals with narrow size distribution were successfully synthesized via a thermal decomposition route. The emission intensity of a mixture of NaGdF4:Yb, Er nanocrystals of various phases was higher than that of a pure alpha- and beta-NaGdF4:Yb, Er nanocrystal, under same particle diameter. The upconversion emission intensity increased as the reduction of the local symmetry of the crystal lattice and the crystallinity increasing of NaGdF4:Yb, Er nanocrystals.
引用
收藏
页码：419 / 424
页数：6
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