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中南大学学报(英文版)

Journal of Central South University

Vol. 24    No. 10    October 2017

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Fuel combustion synthesis and upconversion properties of Yb3+ and Er3+ dual-doped ZrO2 nanocrystals
LIU Xiao-lin(刘小林)1, ZHANG Ning(张宁)2, LI Dan(李丹)1, LI Zhi-cheng(李志成)2, YOU Wei-xiong(游维雄)1, ZHANG Qian(张骞)1, XIA Li-bin(夏李斌)1, YANG Bin(杨斌)1

1. School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China; 2. School of Materials Science and Engineering, Central South University, Changsha 410083, China

Abstract:Ytterbia and erbia dual-doped zirconia (ZrO2: Yb3+, Er3+) nanophosphors were successfully synthesized by high-temperature fuel combustion at 1000 °C for 2 h. The effects of dopant concentration on the structure and upconversion properties were investigated by X-ray diffraction, transmission electron microscopy and photoluminescence, respectively. XRD patterns indicate that the main phase of products belongs to cubic ZrO2 fluorite-type structure. TEM results show that different fuels have great influence on the morphologies of dual-doped ZrO2 samples. Under 980 nm excitation, the glycine-calcined nanophosphors show high stimulated luminescence and doped-ion concentration-depended intensities. The intensely red upconversion emissions are attributed to the fact that the dual-doped Yb3+ and Er3+ ions result in the non-radiative relaxation, energy migration, and cross relaxation.

 

Key words: nanostructure; luminescence; upconversion; zirconia

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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