| Sr7Sb2O12∶Dy3+荧光粉的制备及其发光性能 |
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| 引用本文： | 李浩来,杨伟斌,林易展,凌爽,熊飞兵.Sr7Sb2O12∶Dy3+荧光粉的制备及其发光性能[J].人工晶体学报,2022,51(11):1921-1928. |
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| 作者姓名： | 李浩来 杨伟斌 林易展 凌爽 熊飞兵 |
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| 作者单位： | 厦门理工学院光电与通信工程学院,厦门 361024 |
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| 基金项目： | 福建省自然科学基金(2020J01297) |
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| 摘 要： | 采用高温固相法制备了一系列新型Sr7-xSb2O12∶xDy3+(x=0~0.35)(摩尔分数)荧光粉,并研究了Sr7-xSb2O12∶xDy3+的物相结构、发光性能、热稳定性以及荧光寿命。在350 nm光激发下,Sr7-xSb2O12∶xDy3+可以检测到中心波长在482 nm处的蓝光发射带和中心波长在576 nm处的黄光发射带,当x=0.056时,Dy3+浓度猝灭,Sr6.944Sb2O12∶0.056Dy3+ CIE色坐标为(0.340 8,0.349 3),猝灭机理归因于电偶极-电偶极相互作用。当x=0.14时,该荧光粉可以发出色坐标为(0.310 9,0.314 0)的白光。此外,Sr7-xSb2O12∶xDy3+在453 K的发光强度大约为室温下发光强度的83.3%,表现出良好的热稳定性。综合以上研究结果表明,Sr7-xSb2O12∶xDy3+有望用于紫外光激发的白光发光二极管器件中。
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| 关 键 词： | Dy3+掺杂 Sr7Sb2O12 高温固相法 荧光粉 光致发光 发光性能 荧光寿命 热稳定性 |
| 收稿时间： | 2022-05-07 |
Preparation and Luminescent Properties of Sr7Sb2O12∶Dy3+ Phosphors |
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| LI Haolai,YANG Weibin,LIN Yizhan,LING Shuang,XIONG Feibing.Preparation and Luminescent Properties of Sr7Sb2O12∶Dy3+ Phosphors[J].Journal of Synthetic Crystals,2022,51(11):1921-1928. |
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| Authors: | LI Haolai YANG Weibin LIN Yizhan LING Shuang XIONG Feibing |
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| Affiliation: | School of Optoelectronics and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China |
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| Abstract: | A series of novel Sr7-xSb2O12∶xDy3+(x=0~0.35) (mole percentage) phosphors were obtained by high temperature solid-state reaction. Its phase structure, luminescence properties, thermal stability and fluorescent decay lifetime were investigated. The characteristic emissions centered at 482 nm and 576 nm of Sr7-xSb2O12∶xDy3+ were observed under the excitation light of 350 nm. When x=0.056, the Dy3+ concentration quench, and the Sr6.944Sb2O12∶0.056Dy3+CIE chromaticity coordinates are (0.340 8, 0.349 3). The quenching mechanism is attributed to the dipole-dipole interaction between Dy3+. When x=0.14, the phosphors can emit white light with color coordinates (0.310 9, 0.314 0). In addition, the luminescence intensity of Sr7-xSb2O12∶xDy3+ at 453 K is about 83.3% of that at room temperature, showing good thermal stability. The above research results suggest that the Sr7-xSb2O12∶xDy3+ phosphor is expected to be used in UV-excited white light emitting diode. |
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| Keywords: | Dy3+ doping Sr7Sb2O12 high temperature solid-state method phosphor photoluminescence luminescence property fluorescence lifetime thermal stability |
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