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Zn2+–Eu3+ energy transfer and calculation of Eu3+ 5D0 quantum efficiency

Published online by Cambridge University Press:  20 September 2011

Fa-Bin Cao ,
Xing-Rong Wu  and
Liao-Sha Li
Fa-Bin Cao*
Affiliation:
Anhui Provincial Key Laboratory for Metallurgical Engineering and Resources Recycling, Anhui University of Technology, Maanshan, Anhui 243002, People’s Republic of China
Xing-Rong Wu*
Affiliation:
Anhui Provincial Key Laboratory for Metallurgical Engineering and Resources Recycling, Anhui University of Technology, Maanshan, Anhui 243002, People’s Republic of China
Liao-Sha Li*
Affiliation:
Anhui Provincial Key Laboratory for Metallurgical Engineering and Resources Recycling, Anhui University of Technology, Maanshan, Anhui 243002, People’s Republic of China
*
a)Address all correspondence to these authors. e-mail: yjsun7410@yahoo.com.cn
b)e-mail: music@ahut.edu.cn
c)e-mail: liliaosha@ahut.edu.cn
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Abstract

With 2 mol% Zn2+ codoping and 2 mol% K+ charge compensation, the red-emitting phosphor [K0.8Y0.63Eu3+0.08Zn0.02][Mo0.2W0.8O4] was synthesized by solid-state reaction. X-ray powder diffraction spectrum indicates that it owns single phase. Through its emission spectra, excitation spectra, and fluorescence decay curves measured, its emission mechanism was mentioned and it was calculated for its partial J-O parameters and quantum efficiency of Eu3+ 5D0 energy level under 395 nm excitation. The results indicate that Eu3+ 5D0 → 7F2 red luminescence in the host can be excited by 395 nm, but its quantum efficiency can be improved in space and it has potential applications for white light-emitting diode as the red luminescent materials.

Keywords

EuOptical propertiesLuminescence
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 18 , 28 September 2011 , pp. 2407 - 2413
Copyright
Copyright © Materials Research Society 2011

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