| Sm掺杂的红色荧光粉的制备及发光性能研究 |
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| 引用本文： | 史红阁,茹晶晶,刘明江,陈小妹,王宝华.Sm掺杂的红色荧光粉的制备及发光性能研究[J].广州化学,2014(3):52-54. |
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| 作者姓名： | 史红阁 茹晶晶 刘明江 陈小妹 王宝华 |
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| 作者单位： | 宁德师范学院化学系,福建宁德352100 |
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| 基金项目： | 福建省大学生创新训练项目;福建省教育厅项目（JA13331）;宁德师范学院服务海西建设项目（2011H206）;服务宁德专项（2013F15）;新型光电材料研发团队项目（2013T02）. |
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| 摘 要： | 采用高温固相法合成了Ca3Gd2WO9/xSm3＋系列红色荧光材料。研究了合成样品的最佳烧结温度和时间分别为1 100℃和3 h,讨论了Sm3＋的掺杂浓度对Ca3Gd2WO9/x Sm3＋发光强度的影响,当x为1.0%（摩尔分数）时,样品的相对发光强度达到最大值。测量了荧光粉的X射线衍射谱和荧光光谱。结果表明,该样品能够被434 nm的可见光有效激发,主发射峰位593 nm附近,对应于Sm3＋的4G5/2→6H7/2跃迁,可作为白光发光LED的红色发光材料。
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| 关 键 词： | Sm 荧光粉 光致发光 |
Synthesis and Photoluminescence Property of Sm Doped Phosphors |
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| SHI Hong-ge,RU Jing-jing,LIU Ming-jiang,CHEN Xiao-mei,WANG Bao-hua.Synthesis and Photoluminescence Property of Sm Doped Phosphors[J].Guangzhou Chemistry,2014(3):52-54. |
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| Authors: | SHI Hong-ge RU Jing-jing LIU Ming-jiang CHEN Xiao-mei WANG Bao-hua |
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| Institution: | ( Department o f Chemistry, Ningde Normal University, Ningde 352100, China) |
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| Abstract: | A series of novel red light-emitting phosphors Ca3Gd2WO9/xSm3＋ were synthesized by solid-state method. The optimal synthesis conditions of the phosphors were discussed. The optimum reaction temperature was 1 100℃, and the optimum sintering time was 3 h. The phosphor could be efficiently excited at the doping mole fraction of 1.0%. The phosphors were characterized by XRD and luminescence spectra. The results showed that the phosphors could be excited by visible light of 434 nm effectively. The main emission line was 4G5/2→6H7/2 transition of Sm3＋ at 593 nm, and they could be used for white LED. |
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| Keywords: | Sm tungstate phosphor |
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