| Eu3+和Dy3+共掺单基质Ba2CaWO6白色荧光粉的合成与发光性质 |
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| 引用本文： | 黄军,易双萍,冼洁强,张璐. Eu3+和Dy3+共掺单基质Ba2CaWO6白色荧光粉的合成与发光性质[J]. 广东工业大学学报, 2016, 33(2): 76-80. DOI: 10.3969/j.issn.1007-7162.2016.02.015 |
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| 作者姓名： | 黄军 易双萍 冼洁强 张璐 |
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| 作者单位： | 广东工业大学 物理与光电工程学院，广东 广州 510006 |
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| 基金项目： | 广东省产学研结合资助项目(2012B09110044);广东省自然科学基金资助项目(9151009001000052) |
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| 摘 要： | 通过高温固相法合成了Eu3+和Dy3+共掺杂的单一相Ba2CaWO6的荧光粉.通过XRD和扫描电镜分析了Ba2CaWO6荧光粉的晶相和形貌结构.Ba2CaWO6：Eu3+荧光粉因为5D0-7F1/7F2的能量跃迁发射很强的红光，而Ba2CaWO6：Dy3+荧光粉因为4F9/2-6H15/2和4F9/2-6H13/2的能量跃迁分别发蓝光和黄光.Eu3+/Dy3+共掺杂的Ba2CaWO6荧光粉发射暖白光.Dy3+到Eu3+的能量传递通过发光光谱强度来研究.通过调控Dy3+和Eu3+的掺杂比例可以对Ba2CaWO6：Dy3+,Eu3+样品的色坐标进行有效地调节，测试的色坐标表明Ba2CaWO6：Eu3+/Dy3+很适合紫外激发的白光LED荧光粉.
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| 关 键 词： | 发光 能量传递 Dy3+-Eu3+ Ba2CaWO6, |
| 收稿时间： | 2015-03-08 |
Synthesis and Luminescence Properties of Eu3+/Dy3+ Co-doped Single-phased Ba2CaWO6 Phosphors for White-light Applications |
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| HUANG Jun,YI Shuang-Ping,XIAN Jie-Qiang,ZHANG Lu. Synthesis and Luminescence Properties of Eu3+/Dy3+ Co-doped Single-phased Ba2CaWO6 Phosphors for White-light Applications[J]. Journal of Guangdong University of Technology, 2016, 33(2): 76-80. DOI: 10.3969/j.issn.1007-7162.2016.02.015 |
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| Authors: | HUANG Jun YI Shuang-Ping XIAN Jie-Qiang ZHANG Lu |
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| Affiliation: | School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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| Abstract: | Dy3+,Eu3+, andDy3+-Eu3+ dopedBa2CaWO6 phosphors are synthesized by solid-state method. The structural and morphological studies of theBa2CaWO6 phosphors are conducted by measuring X-ray diffraction pattern and scanning electron microscope images. The photoluminescence (PL) spectra of theBa2CaWO6：Eu3+ phosphor exhibit the intense red emission due to the transition of 5D0-7F1/7F2 while theBa2CaWO6：Dy3+ phosphor shows the blue (4F9/2-6H15/2) and yellow (4F9/2-6H13/2) emissions. TheEu3+/Dy3+ ions co-dopedBa2CaWO6 phosphor shows the improved white light by shifting towards the warm white region. The energy transfer fromDy3+ toEu3+ ions is investigated by means of PL intensities. The luminescence intensities and chromaticity coordinates can be modified by controlling the concentration and the ration of dopingDy3+ andEu3+. The calculated chromaticity coordinates indicate thatBa2CaWO6：Eu3+/Dy3+ phosphors may be suitable for the fabrication of near-UV excitation-based white light-emitting diodes. |
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| Keywords: | luminescence energy transfer Dy3+-Eu3+ Ba2CaWO6, |
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