| 荧光粉Sr3-x-yAl2O6∶xCe3+,yEu2+的制备及其发光特性 |
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| 引用本文： | 周国雄,赵韦人,宋恩海,邹艳,豆喜华.荧光粉Sr3-x-yAl2O6∶xCe3+,yEu2+的制备及其发光特性[J].化工新型材料,2012,40(8):49-51. |
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| 作者姓名： | 周国雄 赵韦人 宋恩海 邹艳 豆喜华 |
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| 作者单位： | 广东工业大学物理与光电工程学院,广州,510006 |
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| 基金项目： | 国家自然科学青年基金项目，广东省产学研结合项目 |
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| 摘 要： | 采用高温固相反应法制备了Sr3-x-yAl2O6:xCe3+,yEu2+(x=0,y=0;x=0.04,y=0;x=0.04,y=0.02;x=0.04,y=0.04;x=0.04,y=0.06;x=0.04,y=0.08;x=0,y=0.04)荧光粉,研究其相组成与荧光特性,结果表明,样品具有单相Sr3Al2O6晶体结构。在360nm波长的紫外光激发下,Ce3+离子辐射出峰值在434nm附近的宽谱蓝光。通过能量传递作用,Eu2+离子辐射峰值为517nm左右的宽谱绿光。Ce3+和Eu2+的荧光组合获得了色坐标为(0.2611,0.3313)的近白光发射。样品的激发光谱分布在250～400nm的波长范围,这种荧光粉有望在紫外或近紫外激发的白光LED中获得应用。
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| 关 键 词： | 荧光粉 高温固相法 LED 光致发光 |
Preparation and luminescence characteristic of Sr3-x-yAl2O6 ∶ xCe3+, yEu2+ phosphor |
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| Zhou Guoxiong
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Zhao Weiren
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Song Enhai
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Zou Yan
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Dou Xihua.Preparation and luminescence characteristic of Sr3-x-yAl2O6 ∶ xCe3+, yEu2+ phosphor[J].New Chemical Materials,2012,40(8):49-51. |
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| Authors: | Zhou Guoxiong Zhao Weiren Song Enhai Zou Yan Dou Xihua |
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| Affiliation: | Zhou Guoxiong Zhao Weiren Song Enhai Zou Yan Dou Xihua(School of Physics & Optoelectronic Engineering, Guangdong University of Technology,Guangdong 510006) |
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| Abstract: | The Sr3-x-yAl2O6:xCe3+,yEu2+(x=0,y=0;x=0.04,y=0;x=0.04,y=0.02;x=0.04,y=0.04;x=0.04,y=0.06;x=0.04,y=0.08;x=0,y=0.04)phosphors were synthesized by high temperature solid-state reaction,and their phase composition and luminescence properties were studied.Under 360nm UV light excitation,Ce3+ ions formed a broad blue emission band with a peak at 434nm.With the energy transfer from Ce3+ ions,Eu2+ ions emited a broad green band with the peak at 517nm.The mixture of the broad blue emission and a broad green emission formed a approximate white light with the CIE Chromaticity(0.2611,0.3313).The phosphors can be excited effectively by UV light in the range of 250~400nm,so the nearly white light emitting made that the phosphors showed great potential application in the white light-emitting LEDs. |
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| Keywords: | phosphor solid state reaction LED photoluminescence |
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