Blue upconversion emission of Cu2+ ions sensitized by Yb3+-trimers in CaF2

被引：27

作者：

Aidilibike, Tuerxun ^{[1
,2
]}

Li, Yangyang ^{[1
]}

Guo, Junjie ^{[1
]}

Liu, Xiaohui ^{[1
]}

Qin, Weiping ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China

[2] Yili Normal Univ, Elect & Informat Engn, Yining 835000, Xinjiang, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 11期

基金：

中国国家自然科学基金;

关键词：

LUMINESCENCE; NANOPARTICLES; TRANSITIONS;

D O I：

10.1039/c5tc04433b

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Under 978 nm near-infrared (NIR) excitation, blue upconversion (UC) emissions from CaF2:Cu2+, Yb3+ were first observed at similar to 420 nm. It was ascribed to the 3d(8)4s(1) -> 3d(9) transition of Cu2+ ions. From transient measurements, the UC process was found to be dominated by the energy transfer process in which three excited Yb3+ ions simultaneously transfer their energy to one Cu2+ ion. The influence of Cu2+ concentration and temperature on the UC emission as well as the Jahn-Teller effect was also investigated.

引用

页码：2123 / 2126

页数：4

共 26 条

[1] Upconversion and anti-stokes processes with f and d ions in solids [J].