Mechanisms of Up-Conversion Luminescence in Glass-Ceramics Containing Er:PbF2 Nanocrystals

被引：0

作者：

P. A. Loiko

G. E. Rachkovskaya

N. A. Skoptsov

G. M. Arzumanyan

M. Kulik

A. I. Kuklin

G. B. Zakharevich

K. V. Yumashev

X. Mateos

机构：

[1] Belarusian National Technical University,Center for Optical Materials and Technologies

[2] Belarusian State Technological University,Física i Cristal·lografia de Materials i Nanomaterials (FiCMA

[3] Joint Institute for Nuclear Research,FiCNA)

[4] Moscow Institute of Physics and Technology,undefined

[5] Universitat Rovira i Virgili (URV),undefined

来源：

Journal of Applied Spectroscopy | 2017年 / 84卷

关键词：

oxyfluoride glass; glass-ceramics; erbium ion; up-conversion; luminescence decay;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Transparent oxyfluoride germanosilicate glass-ceramics containing Er:PbF2 nanocrystals is synthesized on the basis of SiO2–GeO2–PbO–PbF2 initial glass doped with Er2O3. The glass-ceramics is characterized by yellow-green luminescence, the intensity of which is ~12-times higher than that for the initial glass. The redistribution of the intensity between green and red emission bands after the glass heat-treatment is explained using data of the lifetime measurements for six excited states of Er3+ ions from 4I11/2 to 2H11/2. A substantial increase of the lifetime of the 4F9/2 state (from 0.6 to 71 μs) is detected for the glass-ceramics as compared to the initial glass. UV up-conversion luminescence is observed for the glass-ceramics. The mechanisms of the up-conversion for 11 emission lines in the UV, blue, red, and deep-red spectral regions are discussed.

引用

页码：194 / 201

页数：7

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