| 基于能量传递可调色度ZnNb2O6:Dy3+, Eu3+荧光粉的制备及其发光性能研究 |
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| 引用本文： | 梁柏鑫,易双萍,胡耕樵,方志雄,赵韦人. 基于能量传递可调色度ZnNb2O6:Dy3+, Eu3+荧光粉的制备及其发光性能研究[J]. 广东工业大学学报, 2020, 37(1): 34-41. DOI: 10.12052/gdutxb.190024 |
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| 作者姓名： | 梁柏鑫 易双萍 胡耕樵 方志雄 赵韦人 |
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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： | 广东省科技发展专项（2016A010103029）；广州市科技计划项目科学研究专项（201607010179） |
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| 摘 要： | 采用传统的高温固相法合成了Dy3+/Eu3+单掺杂和Dy3+，Eu3+共掺的具有可调色度ZnNb2O6荧光粉。利用X射线衍射、激发和发射光谱、荧光寿命以及扫描电镜（SEM）等系统地分析了上述合成样品。ZnNb2O6在200~500 nm有着较宽的吸收带，呈现出具有自激活发光的特性。ZnNb2O6：0.08Dy3+和ZnNb2O6：0.08Dy3+，0.03Eu3+荧光粉的色度坐标接近标准白光（0.33，0.33）。通过Dy3+作为敏化剂，Eu3+作为红光发光来调节样品的发光颜色；通过荧光光谱以及荧光寿命衰减曲线确定Dy3+至Eu3+离子的能量传递机制。分析得出Dy3+离子到Eu3+离子的能量传递机制遵循非辐射电偶极矩-电四极矩作用。据此，本文制备的ZnNb2O6：0.08Dy3+，yEu3+荧光粉在紫外汞灯白光源和其他固态照明技术中具有一定的应用价值。
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| 关 键 词： | 荧光粉 光致发光 X射线衍射 能量传递 |
| 收稿时间： | 2019-02-18 |
Synthesis and Luminescence Properties of Multicolor Tunable ZnNb2O6: Dy3+, Eu3+ Phosphors Based on Energy Transfer |
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| Liang Bo-xin,Yi Shuang-ping,Hu Geng-qiao,Fang Zhi-xiong,Zhao Wei-ren. Synthesis and Luminescence Properties of Multicolor Tunable ZnNb2O6: Dy3+, Eu3+ Phosphors Based on Energy Transfer[J]. Journal of Guangdong University of Technology, 2020, 37(1): 34-41. DOI: 10.12052/gdutxb.190024 |
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| Authors: | Liang Bo-xin Yi Shuang-ping Hu Geng-qiao Fang Zhi-xiong Zhao Wei-ren |
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| Affiliation: | School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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| Abstract: | In order to study new rare earth ion doped chromaticity phosphors, a color-tunable phosphor based on Dy3+/Eu3+ co-doped ZnNb2O6 were synthesized by a traditional solid-state reaction method. X-ray powder diffraction (XRD), Scanning Electron Microscope (SEM), photoluminescence spectra and decay curves were utilized to characterize the as-prepared phosphors. The ZnNb2O6 host was proved to be a self-activated phosphor with broad absorption range from 200 to 550 nm. The color coordinate (x, y) values of ZnNb2O6:0.08Dy3+ and ZnNb2O6:0.08Dy3+, 0.03Eu3+ phosphors were already very close to the standard white light (0.33, 0.33). Therefore, Dy3+ was selected as the sensitizer ion and red component from Eu3+ adjusted to control the emission color. The energy transfer from Dy3+ to Eu3+ was confirmed based on the luminescence spectra and decay curves. Furthermore, the energy transfer mechanism was deduced to be the dipole-quadrupole interaction. In general, the ZnNb2O6:0.08Dy3+, yEu3+ phosphors obtained may have potential application in the ultraviolet pumped white light sources and display devices etc. |
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| Keywords: | phosphors luminescence X-ray diffraction energy transfer |
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