光谱学与光谱分析 |
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Photoluminescence Properties of Nanocrystalline A3(VO4)2:Eu(A=Mg, Ca, Sr and Ba) |
FU Xiao-yan1, NIU Shu-yun1*, ZHANG Hong-wu2, XIN Qin2 |
1. College of Chemistry and Chemical Engineering of Liaoning Normal University, Dalian 116029, China 2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China |
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Abstract A series of europium doped alkali earth orthovanadates were prepared by Pechini-type sol-gel. The powders were characterized by transmission electron microscopy (TEM), infrared spectrum (IR) and photoluminescence (PL). The results of TEM show that high-quality nanopowders with controlled particle size about 50 nm were prepared. The relation between alkali earth ions and luminescence properties was observed from the results of luminescence spectra. Due to the similar ion radius of Ca2+ ions and Eu3+ ions, Ca3(VO4)2:Eu powders exhibit the strongest emission intensity among the four kind of phosphors.
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Received: 2004-09-29
Accepted: 2005-02-28
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Corresponding Authors:
NIU Shu-yun
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Cite this article: |
FU Xiao-yan,NIU Shu-yun,ZHANG Hong-wu, et al. Photoluminescence Properties of Nanocrystalline A3(VO4)2:Eu(A=Mg, Ca, Sr and Ba) [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(01): 27-29.
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URL: |
https://www.gpxygpfx.com/EN/Y2006/V26/I01/27 |
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