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Journal of Materials Science: Materials in Electronics
Published in: Journal of Materials Science: Materials in Electronics 22/2017

06-09-2017

The influence on the luminescence properties of Sr1.95−xEu0.05MgxSi5N8 with different Sr/Mg ratios

Authors: Chuang Wang, Ge Zhu, Shuangyu Xin, Huiling Zheng

Published in: Journal of Materials Science: Materials in Electronics | Issue 22/2017

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Abstract

A series of Sr1.95−xEu0.05MgxSi5N8:Eu2+ nitride phosphors were synthesized by gas-pressed sintering method. X-ray diffraction with Rietveld refinements, photoluminescence spectra, thermal quenching behavior, and lifetimes were utilized to characterize samples. The influence of incorporating Mg2+ into Sr2Si5N8:Eu2+ phosphors on the crystal structure and luminescence properties were discussed in detail. At a certain concentration, doping Mg2+ can greatly enhance the PL intensity of Sr2Si5N8:Eu2+ phosphors. The red phosphor Sr1.95−xEu0.05MgxSi5N8:Eu2+ exhibited a small thermal quenching, which remained 75% of the initial emission intensity when measured at 150 °C. All the results indicate that the Sr1.95−xEu0.05MgxSi5N8:Eu2+ can be an excellent candidate of phosphor applicable to n-UV LEDs for solid-state lighting.
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Metadata
Title
The influence on the luminescence properties of Sr1.95−xEu0.05MgxSi5N8 with different Sr/Mg ratios
Authors
Chuang Wang
Ge Zhu
Shuangyu Xin
Huiling Zheng
Publication date
06-09-2017
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 22/2017
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-7633-8

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