| 掺杂离子对Y_2O_2S:Eu红色长余辉材料发光性能的影响 |
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| 引用本文： | 曾慧慧.掺杂离子对Y_2O_2S:Eu红色长余辉材料发光性能的影响[J].萍乡高等专科学校学报,2010,27(6):72-75. |
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| 作者姓名： | 曾慧慧 |
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| 作者单位： | 萍乡高等专科学校中专部,江西萍乡 337000 |
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| 摘 要： | 采用高温固相法制备了Y2O2S:Eu3+,Si4+,Zn2+红色长余辉发光材料。通过发射光谱、XRD、余辉衰减曲线和热释光谱的测量,研究了在Y2O2S:Eu体系中掺杂Si4+,Zn2+离子对荧光体的发光与长余辉特性的影响。结果表明,Si4+,Zn2+离子的掺杂不影响发射光谱和晶体结构,但显著地影响材料的长余辉特性。当Si4+,Zn2+离子摩尔含量为0.06mol,并且Zn2+和Si4+的摩尔比为1:1时,样品的发光亮度最高,而且它的余辉衰减时间也最长。根据实验结果,探讨了Y2O2S:Eu体系荧光体的长余辉发光机理.
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| 关 键 词： | 长余辉 高温固相法 发光 |
Effect of Doping on Luminescence properties of Y2O2S:Eu Phosphor |
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| Zeng Huihui.Effect of Doping on Luminescence properties of Y2O2S:Eu Phosphor[J].Journal of Pingxiang College,2010,27(6):72-75. |
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| Authors: | Zeng Huihui |
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| Institution: | Zeng Huihui(Pingxiang College,Pingxiang 337000,China) |
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| Abstract: | A novel red long lasting phosphor Y2O2S：Eu3＋,Si4＋,Zn2＋ were synthesized by solid state reaction.XRD and photoluminescence（PL）spectra as well as the luminance decay were used to characterize the long lasting phosphor.The results indicate that the product synthesized under 1200℃for 2h has a good long lasting properties with the Si-to-Zn ratio being 1：1,and the ion content of Si4＋,Zn2＋ is 0.06mol.The long persistent luminescence mechanism of Y2O2S：Eu is also discussed. |
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| Keywords: | long lasting phosphor solid state reaction luminescence |
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