Study of the effect of Li+ concentration on the photoluminescence properties of Y2O3:Eu3+ phosphors |
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| Authors: | Na Liao Ling-yun Shi Hong Jia Xiao-jing Yu Da-lai Jin Long-cheng Wang |
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| Affiliation: | 1.Materials Engineering Center,Zhejiang Sci-Tech University,Hangzhou,China |
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| Abstract: | Y2O3:Eu3+ phosphors were prepared by hydrothermal method. Effect of the doping concentration of Eu3+ on the photoluminescence properties of Y2O3:Eu3+ phosphor was studied in details. It was found that the strongest emission intensity is achieved as atomic ratio of Y3+ to Eu3+ is 8. As concentration of Eu3+ exceeds the critical concentration, the emission intensity decreases dramatically due to the concentration quenching of Eu3+. Also, the effect of Li+ on the photoluminescence performance of the Y2O3:Eu3+ phosphor is studied in this work. According to the results, the doping of Li+ may greatly improve the PL performance of the Y2O3:Eu3+ phosphors due to the flux effect and improved crystallinity caused by the doping of Li+. |
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