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Synthesis and photoluminescence properties of Eu3+-doped ZrO2 hollow spheres

Published online by Cambridge University Press:  22 December 2015

Min Zhang ,
Weiwei Zuo ,
Meifang Zhu ,
Dianguang Liu ,
Yigao Chen ,
Meng Zhu ,
Haoran Hong ,
Chengyu Yang ,
Yiguang Wang  and
Jinling Liu
...Show all authors
Min Zhang
Affiliation:
College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing, Beijing 102617, China
Weiwei Zuo*
Affiliation:
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, Shanghai 201260, China
Meifang Zhu
Affiliation:
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, Shanghai 201260, China
Dianguang Liu
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China
Yigao Chen
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China
Meng Zhu
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China
Haoran Hong
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China
Chengyu Yang
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China
Yiguang Wang*
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China
Jinling Liu
Affiliation:
State Key Laboratory of Traction Power, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Linan An
Affiliation:
Department of Materials Science and Engineering, Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, USA
*
a) Address all correspondence to these authors. e-mail: zuoweiwei@dhu.edu.cn
c) e-mail: wangyiguang@nwpu.edu.cn
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Abstract

ZrO2:Eu3+ hollow spheres were successfully fabricated with the resin microspheres as the template. The sample characterizations were carried out by means of x-ray diffraction (XRD), scanning electron microscope (SEM), and photoluminescence spectra. XRD results revealed that Eu3+-doped samples were pure t-ZrO2 phase after being calcined at 873 K. SEM results exhibited that this Eu3+ doped ZrO2 was hollow spheres; the diameter and thickness of which were about 450 and 50 nm, respectively. Upon excitation at 394 nm, the orange-red emission bands at the wave length longer than 570 nm were from 5D0 → 7FJ (J = 1, 2) transitions. The asymmetry ratio of (5D0 → 7F2)/(5D0 → 7F1) intensity is about 1.61, 1.26, 1.42, 1.42, 1.40, and 1.38 for the Eu3+ concentration 0.4, 0.7, 1.0, 1.5, 2.0, and 2.5 mol%, respectively. These values suggest that the asymmetry ratio of Eu3+ ions is independent of the doping concentration. The optimal doping concentration of Eu3+ ions in ZrO2 is 1.5 mol%. According to Dexter's theory, the critical distance between Eu3+ ions for energy transfer was determined to be 16 Å.

Keywords

phosphorZrO2:Eu3+photoluminescencehollow spheres
Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 24 , 28 December 2015 , pp. 3740 - 3745
Copyright
Copyright © Materials Research Society 2015 

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Footnotes

b)

Co-first author

Contributing Editor: Xiaobo Chen

References

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