| 白光LED用荧光材料Sr3B2O6:Eu3+,Na+的制备及发光性能 |
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| 引用本文： | 王荣,徐进,陈朝.白光LED用荧光材料Sr3B2O6:Eu3+,Na+的制备及发光性能[J].发光学报,2011,32(10):983-987. |
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| 作者姓名： | 王荣 徐进 陈朝 |
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| 作者单位： | 1. 厦门大学 材料学院, 福建 厦门 361005;
2. 厦门大学 能源研究院, 福建 厦门 361005;
3. 厦门大学 物理与机电工程学院, 福建 厦门 361005 |
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| 摘 要： | 采用高温固相法合成了可用于白光LED的Sr3 B2 O6:Eu3+,Na+荧光粉.研究了煅烧时间、稀土Eu3+掺杂量等条件对材料发光性能的影响.结果表明:适量掺人Eu3+、Na+之后,基质的晶格结构未发生变化；稀土Eu3+掺杂摩尔分数为6％,煅烧时间为3h时最佳；作为电荷补偿剂的Na+的引入,较大地提高了荧光粉发光强度...
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| 关 键 词： | Sr3 B2O6:Eu3+ Na+ 高温固相法 红色荧光粉 白光LED |
| 收稿时间： | 2011-06-14 |
Fabrication and Luminescent Properties of Sr3B2O6∶Eu3+,Na+ Phosphor for White LED Applications |
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| WANG Rong,XU Jin,CHEN Chao.Fabrication and Luminescent Properties of Sr3B2O6∶Eu3+,Na+ Phosphor for White LED Applications[J].Chinese Journal of Luminescence,2011,32(10):983-987. |
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| Authors: | WANG Rong XU Jin CHEN Chao |
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| Institution: | 1. School of Materials, Xiamen University, Xiamen 361005, China;
2. School of Energy Research, Xiamen University, Xiamen 361005, China;
3. School of Physics and Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, China |
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| Abstract: | A series of Sr3B2O6∶Eu3+, Na+ phosphors were synthesized at 1 200 ℃ by conventional solid state reaction method and their luminescent properties were investigated. Structural characterization of the luminescent materials was carried out with X-ray powder diffraction (XRD) analysis. XRD results showed that no apparently structure transformation of the Sr3B2O6 matrix was observed after doping appropriate amount of Eu3+, Na+. Photoluminescence spectra indicated that the phosphor can be efficiently excited by 394 nm near-UV light and exhibited an intense red luminescence corresponding to the electric dipole transition 5D0→7F2 at 615 nm. It was found that the optimal conditions to obtain the red emitting phosphor are 6% mole fraction of Eu3+, 3 h of the calcination time. In addition, the introduction of charge compensator Na+ can lead to the strongly enhanced emission intensity of Eu3+. Therefore, the material could be a promising red phosphor for possible applications in the white LED. |
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| Keywords: | Sr3B2O6∶Eu3+ Na+ solid-state reaction method red emitting phosphor white-LED |
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