| 白光LED用红色荧光粉的制备及发光性能 |
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| 引用本文： | 林莹,朱庆斌,高绍康. 白光LED用红色荧光粉的制备及发光性能[J]. 广州化工, 2010, 38(5): 108-110 |
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| 作者姓名： | 林莹 朱庆斌 高绍康 |
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| 作者单位： | 福建交通职业技术学院安全技术与环境工程系,福建,福州,350007;福州大学化学化工学院,福建,福州,350108 |
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| 基金项目： | 福建省教育厅资助科研项目 |
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| 摘 要： | 采用溶胶凝胶法(sol-gel)合成CaO-MgO-S iO2:Eu3+荧光粉,在近紫外393nm激发下发射出Eu3+的特征红色光谱,并研究了该方法中各种工艺条件(如:pH值,Eu3+的掺杂量等)对其影响。通过X射线粉末衍射、荧光光谱等分析其发光特性,表明Eu3+离子在CaO-MgO-S iO2:Eu3+基质中处于较低的对称格位,发射来源于5D0→7F2613nm为主的红光。
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| 关 键 词： | 红色荧光粉 溶胶凝胶法 白光LED 光谱性质 |
Preparation and Photoluminescence of A Red-emitting Phosphor CaO-MgO-SiO2:Eu3+ for White LED |
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| LIN Ying,ZHU Qing-bin,GAO Shao-kang. Preparation and Photoluminescence of A Red-emitting Phosphor CaO-MgO-SiO2:Eu3+ for White LED[J]. GuangZhou Chemical Industry and Technology, 2010, 38(5): 108-110 |
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| Authors: | LIN Ying ZHU Qing-bin GAO Shao-kang |
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| Affiliation: | 1 Department of Safety Technology and Environmental Engineering,Fujian CommunicationsTechnology College,Fujian Fuzhou 350007; 2 College of Chemistry and Chemical Engineering,Fuzhou University,Fujian Fuzhou 350108,China) |
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| Abstract: | A red-emitting CaO-MgO-SiO2：Eu^3＋ was synthesized by sol-gel method.It can be effectively excited by ultraviolet with 393nm,and exhibit a satisfactory red performance.The effects of synthetic conditions,such as the pH,the concentration of Eu^3＋,and the fluxes on the luminescence properties were studied.X-ray diffraction and photoluminescence spectra were employed to characterize its spectra property.The results showed that Eu3＋ ions occupied asymmetry sites,thus can emit red light at 613nm corresponding to the transition from 5D0 to 7F2 levels. |
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| Keywords: | red-emitting phosphor sol-gel white LED spectral property |
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