| Ca10K（PO4）7:Eu3+红色荧光粉的制备及其发光性质 |
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| 引用本文： | 周国雄,赵韦人,宋恩海,豆喜华,易春雨,周民康. Ca10K（PO4）7:Eu3+红色荧光粉的制备及其发光性质[J]. 化工新型材料, 2012, 40(2): 46-48 |
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| 作者姓名： | 周国雄 赵韦人 宋恩海 豆喜华 易春雨 周民康 |
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| 作者单位： | 1. 广东工业大学物理与光电工程学院,广州,510006
2. 惠州市纯英半导体照明科技有限公司,惠州,516006 |
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| 基金项目： | 国家自然科学青年基金，广东省创新基金 |
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| 摘 要： | 高温固相法合成了Ca10-xK(PO4)7:xEu3+(x=0.02,0.04,0.06,0.08,0.10,0.12,0.14和0.16)的红色荧光粉。X射线衍射表明,样品具有标准的Ca10K(PO4)7六角晶体结构,且无第二相存在。在393nm的波长激发下,样品获得由Eu3+的4f-4f跃迁产生红光发射,其中以613nm附近的5 D0→7F2电偶极跃迁发射为最强。通过调节Eu3+的掺杂浓度,获得了色坐标与商业化Y2O2S:Eu3+荧光粉十分接近的接近纯色的红色荧光粉。Ca10K(PO4)7:Eu3+是一种可望应用于紫外激发的白光LED的红色荧光粉。
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| 关 键 词： | 磷酸盐 高温固相法 红色荧光 LEDs |
Synthesis and photoluminescence of Ca10K(PO4)7:Eu3+ phosphor |
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| Zhou Guoxiong , Zhao Weiren , Song Enhai , Dou Xihua , Yi Chunyu , Zhou Minkang. Synthesis and photoluminescence of Ca10K(PO4)7:Eu3+ phosphor[J]. New Chemical Materials, 2012, 40(2): 46-48 |
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| Authors: | Zhou Guoxiong Zhao Weiren Song Enhai Dou Xihua Yi Chunyu Zhou Minkang |
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| Affiliation: | 1.School of Physics & Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006; 2.Hui Zhou Unihero Semiconductor Lighting Technology Co.,Ltd.Huizhou 516006) |
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| Abstract: | Ca10-xK(PO4)7:xEu3+(x=0.02,0.04,0.06,0.08,0.10,0.12,0.14 and 0.16) phosphors were prepared by high temperature solid state reaction.X-ray diffraction showed that all samples crystallized with the standard Ca10K(PO4)7 hexagonal crystal structure,and no secondary phase was observed.Under the excitation at wavelength 393nm,the red emission brought by the 4f-4f transition in Eu3 + was observed,and the strongest emission peak was near 613nm which was caused by the 5D0→7F2electric dipole transition.By adjusting Eu3+ concentration,color coordinates closed to the commercialization of Y2O2S: Eu3+ Phosphor can be obtained,which endowed Ca10K(PO4)7: Eu3+ with promising red phosphors used in NUV-chip based white light emitting LEDs. |
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| Keywords: | phosphate solid state reaction red fluorescence LEDs |
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