| Preparation of Stable CaS∶Eu~(2+), Tm~(3+) Phosphor |
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| 引用本文： | 郭崇峰,初本莉,吴明娒,苏锵,黄振立. Preparation of Stable CaS∶Eu~(2+), Tm~(3+) Phosphor[J]. 中国稀土学报(英文版), 2003, 21(5) |
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| 作者姓名： | 郭崇峰 初本莉 吴明娒 苏锵 黄振立 |
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| 作者单位： | School of Chemistry and Chemical Engineering，Sun Yat Sen University，Guangzhou 510275，China，School of Chemistry and Chemical Engineering，Sun Yat Sen University，Guangzhou 510275，China，School of Chemistry and Chemical Engineering，Sun Yat Sen University，Guangzhou 510275，China，School of Chemistry and Chemical Engineering，Sun Yat Sen University，Guangzhou 510275，China，State Key Laboratory of Optoelectronic Materials and Technologies，Sun Yat Sen University，Guangzhou 510275，China，State Key Laboratory of Optoelectronic Materials and Technologies，Sun Yat Sen University Guangzhou 510275，China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina ( 2 0 1710 46)andNaturalScienceFoundationofGuangdongProvince ( 2 14 2 3 45 2 ) |
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| 摘 要： | Alkalineearthsulfides (AES)havebeenfoundtobeexcellentandversatilephosphor ,andrareearthsasactivatorshavebeenintensivelyinvestigated[1～ 7] .Theyholdpromiseforapplicationsinphoto ,electro ,cathoderay ,fieldemissiondisplaysandluminescencepaints[8,9] .However ,alkalineearthsulfidesasaphos phorhosthavebeenfoundtobelimitedinapplica tion ,duemainlytoitssensitivetomoistureandotheratmosphericcomponents .Theirchemicalstabilityagainstatmosphericcarbondioxideandmoisturecouldbeenhancedthroughthegoodcryst…
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| 关 键 词： | optics phosphor CaS∶Eu 2+ Tm 3+ chemical stability flux rare earths |
Preparation of Stable CaS∶Eu2+, Tm3+ Phosphor |
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| Guo Chongfeng ,Chu Benli ,Wu Mingmei ,Su Qiang ,,Huang Zhenli. Preparation of Stable CaS∶Eu2+, Tm3+ Phosphor[J]. Journal of Rare Earths, 2003, 21(5) |
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| Authors: | Guo Chongfeng Chu Benli Wu Mingmei Su Qiang Huang Zhenli |
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| Affiliation: | Guo Chongfeng 1,Chu Benli 1,Wu Mingmei 1,Su Qiang 1,2*,Huang Zhenli 2 |
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| Abstract: | Different fluxes were used to synthesize long persistence phosphors, calcium sulfides activated by Eu 2+ and Tm 3+ , by convenient solid state method. The phosphor using NH 4F as a flux has good crystallinity and large particle size, its stability against water and other atmospheric components is enhanced, and its afterglow is longer and fluorescent intensity is more intense than those of the phosphor using NH 4Cl as flux. Their PL intensities varied with time in moist air were measured, no remarkable change was found for those prepared with NH 4F flux in contrast with NH 4Cl as flux. So using NH 4F as flux is a good method to enhance the stability of alkaline earth sulfides. |
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| Keywords: | optics phosphor chemical stability flux rare earths |
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