| Long-Lasting Properties of Rare Earth-Doped Y2O2S Phosphors |
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| 作者姓名： | 雷炳富 刘应亮 刘洁 唐功本 叶泽人 石春山 |
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| 作者单位： | [1]KeyLaboratoryofRareEarthChemistryandPhysics,ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun130022,China [2]DepartmentofChemistry,JinanUniversity,Guangzhou510632,China |
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| 基金项目： | 国家自然科学基金，国家自然科学基金，Foundation from Key Laboratory of Rare Earth Chemistry and Physics of Changchun Institute of Applied Chemistry |
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| 摘 要： | The aim of this presentation is to report a new result of afterglow materials. The Y2O2S:Ln^3 (Ln = Sm, Tm)phosphors show bright reddish orange and orange-yellow colors when excited by UV or visible light. The main spectroscopic characterizations of Sm^3 and Tm^3 in yttrium oxysulfide and their long-lasting phosphorescence were measured and discussed in this presentation. Their long-lasting phosphorescence can be seen by the naked eyes clearly for about one hour in the dark room after the irradiation light sources were removed. XRD and photoluminescence (PL) spectra as well as the luminance decay were used to characterize these long-lasting phosphorescence phosphors. The results of XRD indicate that the products synthesized through the flux fusion method under 1050℃ for 6 h have a good crystallization without any detectable amount of impurity phase. Both the PL spectra and luminance decay results reveal that these phosphors have efficient luminescent and good long-lasting properties. We believe that the experimental data gathered in our present work will be useful in finding some new long-lasting phosphors with different colors.
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| 关 键 词： | Y2O2S 稀土 掺杂 荧光材料 长余辉 发光性能 XRD |
Long-Lasting Properties of Rare Earth-Doped Y2O2S Phosphors |
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| Lei Bingfu ,Liu Yingliang ,Liu Jie ,Tang Gongben ,Ye Zeren ,Shi Chunshan.Long-Lasting Properties of Rare Earth-Doped Y2O2S Phosphors[J].Journal of Rare Earths,2004,22(1):75-78. |
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| Authors: | Lei Bingfu Liu Yingliang Liu Jie Tang Gongben Ye Zeren Shi Chunshan |
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| Affiliation: | Lei Bingfu 1,2,Liu Yingliang 2,Liu Jie 1,Tang Gongben 1,Ye Zeren 1,Shi Chunshan 1* |
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| Abstract: | The aim of this presentation is to report a new result of afterglow materials. The Y2O2S∶Ln3 (Ln=Sm, Tm) phosphors show bright reddish orange and orange-yellow colors when excited by UV or visible light. The main spectroscopic characterizations of Sm3 and Tm3 in yttrium oxysulfide and their long-lasting phosphorescence were measured and discussed in this presentation. Their long-lasting phosphorescence can be seen by the naked eyes clearly for about one hour in the dark room after the irradiation light sources were removed. XRD and photoluminescence(PL) spectra as well as the luminance decay were used to characterize these long-lasting phosphorescence phosphors. The results of XRD indicate that the products synthesized through the flux fusion method under 1050 ℃ for 6 h have a good crystallization without any detectable amount of impurity phase. Both the PL spectra and luminance decay results reveal that these phosphors have efficient luminescent and good long-lasting properties. We believe that the experimental data gathered in our present work will be useful in finding some new long-lasting phosphors with different colors. |
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| Keywords: | optics yttrium oxysulfide thulium ion samarium ion afterglow phosphors rare earths |
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