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Chemcial Industry and Engineering 2007, Vol. 24 Issue (6) :497-500    DOI:
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Photoluminescence of Y_2O_3:Eu~(2+) Phosphor Prepared by Oxalic Acid Co-Precipitation Method
FAN Jun-gang,SUN Shu-qing,MA Xiang-hui(School of Sciences,Tianjin University,Tianjin 300072,China)
(School of Sciences,Tianjin University,Tianjin 300072,China

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Abstract In this article,Y_2O_3:Eu~(2+) phosphor powder is synthesized by self-reduction and oxidation of oxalicates that prepared by oxalic acid co-precipitation method,in which Y_2O_3 is the host material and Eu~(2+) is the photoluminescent center.This method has a low calcination temperature and simple operation and Eu~(3+) was reduced to Eu~(2+) without any reductive materials from outside.This method has lower danger and cost than conventional methods.In this experiment,the photoluminescent properties and mechanism of Y_2O_3:Eu~(2+) as well as relations between concentration of Eu~(2+),calcinations temperature and luminescent brightness of Eu~(2+) at 545 nm in the emission spectra are investigated.
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Received 2007-11-15; published 2007-11-15
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FAN Jun-gang,SUN Shu-qing,MA Xiang-hui.Photoluminescence of Y_2O_3:Eu~(2+) Phosphor Prepared by Oxalic Acid Co-Precipitation Method[J]  Chemcial Industry and Engineering, 2007,V24(6): 497-500
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