Effect of heat treatment mechanism on upconversion luminescence in Er3+/Yb3+ co-doped NaYF4 oxyfluoride glass-ceramics

被引：30

作者：

Gao, Yuan ^{[1
]}

Hu, Yuebo ^{[2
]}

Zhou, Dacheng ^{[1
,3
]}

Qiu, Jianbei ^{[1
,3
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, Fac Mech & Elect Engn, Kunming 650500, Peoples R China

[3] Key Lab Adv Mat Yunnan Prov, Kunming 650093, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 699卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Up-conversion emission; Heat treatment mechanism; NaYF4 glass ceramics; Rare earth;

D O I：

10.1016/j.jallcom.2016.12.437

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Effect of glass heat treatment technology on upconversion (UC) luminescence in Er3+/Yb3+ co-doped NaYF4 oxyfluorode glass-ceramics (GC) was investigated. First, NaYF4 nanocrystals were precipitated from single process glasses after heat-treatment of different temperature, and the nanocrystals size of NaYF4 in the heat-treat temperature of 540 degrees C and 590 degrees C samples, the crystal size is 5 nm and 27 nm, respectively. Moreover, the two-step heating process obtain the different size nanocrystals (5 nm and 28 nm) in the same piece of glass. It is found that the UC luminescence properties of Er-(3+) ions were changed in accordance with the heat treatment mechanism, and the Er3+ concentration of nanocrystals. Compare with single process, the UC luminescence properties of two-step heat treatment of enhancement of green emission intensity and fluorescence strength. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：303 / 307

页数：5

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