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- W2368907540 abstract "(Y,Gd)2O3∶Eu3+ nanopowders were prepared by co-precipitation method using ammonium bicarbonate as precipitating agent.FT-IR,XRD,TEM,SEM,DTA/TG and SEM were used to characterize the samples.The emission spectrums of the samples were analyzed by the fluor-photometer.The results show that the powders are approximately spherical particles with even particle size of about 15-20 nm and good dispersivity under calcining at 800 ℃ for 2 h and drying at 150 ℃.With the increasing of Eu3+ concentration,the peak intensity enhanced.When the concentration of Eu3+ is 5 mol%,the emission peak of 5D0→7F2 transition has the strongest peak intensity.However,the peak intensity decreased when the doping concentration of Eu3+ is higher than 5 mol%,which induced by the concentration quenching." @default.
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- W2368907540 date "2009-01-01" @default.
- W2368907540 modified "2023-09-25" @default.
- W2368907540 title "Preparation and Spectrum Characteristics of(Y,Gd)_2O_3:Eu~(3+) Nano-particles by Ammonium Bicarbonate Co-precipitation Method" @default.
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