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中南大学 材料科学与工程学院, 湖南 长沙 410083
[ "叶博(1996-),男,湖北武汉人,硕士研究生,2019年于中南大学获得学士学位,主要从事稀土发光材料的研究。 E-mail: yb123hello@163.com" ]
[ "蔡格梅(1979-),女,湖南永州人,博士,教授,2008年于中国科学院物理研究所获得博士学位,主要从事无机材料的相图、相结构,光功能材料的预测、开发与改性,先进合金的高通量设计、制备与表征等研究。 E-mail: caigemei@csu.edu.cn" ]
纸质出版日期:2023-04-05,
收稿日期:2022-09-23,
修回日期:2022-10-18,
移动端阅览
叶博,李贵花,王荣荣等.Na3Sc2(BO3)3∶Tb3+反热猝灭荧光粉制备及其发光性能[J].发光学报,2023,44(04):598-606.
YE Bo,LI Guihua,WANG Rongrong,et al.Preparation and Luminescence Properties for Na3Sc2(BO3)3∶Tb3+ Phosphors with Anti-thermal-quenching Phenomenon[J].Chinese Journal of Luminescence,2023,44(04):598-606.
叶博,李贵花,王荣荣等.Na3Sc2(BO3)3∶Tb3+反热猝灭荧光粉制备及其发光性能[J].发光学报,2023,44(04):598-606. DOI: 10.37188/CJL.20220342.
YE Bo,LI Guihua,WANG Rongrong,et al.Preparation and Luminescence Properties for Na3Sc2(BO3)3∶Tb3+ Phosphors with Anti-thermal-quenching Phenomenon[J].Chinese Journal of Luminescence,2023,44(04):598-606. DOI: 10.37188/CJL.20220342.
采用高温固相法制备了一系列新型Na
3
Sc
2(1-
x
)
(BO
3
)
3
∶
x
Tb
3+
荧光粉,通过X射线衍射(XRD)、扫描电子显微镜(SEM)、光致发光光谱(PL)、真空紫外荧光光谱(VUV)、高温荧光光谱和荧光衰减寿命等表征手段对其结构、形貌、成分、发光性能进行了系统研究。结果表明,在242 nm紫外光激发下,Na
3
Sc
2(1-
x
)
(BO
3
)
3
∶
x
Tb
3+
荧光粉发出主峰位于553 nm的明亮绿光,当掺杂浓度
x
= 0.025时,发光强度达到最大。真空紫外荧光光谱显示这些荧光粉也可以被187 nm的深紫外光有效激发。在环境温度上升过程中,Na
3
Sc
1.95
(BO
3
)
3
∶0.025Tb
3+
表现出了反热猝灭行为;当温度达到473 K时,样品的发光强度达到最高,为室温(298 K)时的109.3%。该类新型绿色荧光粉的强发射、高热稳定性等特点预示了其在照明和显示领域的应用潜力。
A series of Na
3
Sc
2(1-
x
)
(BO
3
)
3
∶
x
Tb
3+
phosphors were prepared by high-temperature solid-state method. We investigated the crystal structure, surface morphology, elemental composition, and luminescence properties through X-Ray diffraction(XRD), scanning electron microscope(SEM), photoluminescence(PL) spectrum, vacuum ultra violet(VUV) fluorescence spectrum, high temperature fluorescence spectrum and fluorescence decay lifetime. The results indicate that the Na
3
Sc
2(1-
x
)
(BO
3
)
3
∶
x
Tb
3+
phosphors can emit bright green light(~553 nm) under 242 nm UV excitation. The PL intensity of Na
3
Sc
2(1-
x
)
(BO
3
)
3
∶
x
Tb
3+
reaches the maximum when
x
=0.025. Vacuum UV fluorescence spectra show that these phosphors could be also excited by 187 nm deep ultraviolet light. And when the ambient temperature starts to rise from room temperature, the Na
3
Sc
1.95
(BO
3
)
3
∶0.025Tb
3+
exhibits an anti-thermal-quenching phenomenon. When the temperature reaches 473 K, the luminescence intensity of the sample reached the highest, 109.3% of that at room temperature (298 K). The strong emission and high thermal stability of these new green phosphors indicate the certain potential application in lighting and display fields.
荧光粉Tb3+掺杂反热猝灭照明与显示
phosphorTb3+ dopedanti-thermal-quenchinglighting and display
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