热稳定性优异的单一基质白光Cs2Li3Sr2B3(PO4)6∶Dy3+荧光粉发光性能
增强出版Single-phase White Light-emitting Phosphor Cs2Li3Sr2B3(PO4)6∶Dy3+ with Excellent Thermal Stability
- 发光学报 2022年43卷第5期 页码：676-683
- 作者机构：
1.东莞理工学院 电子工程与智能化学院，广东 东莞 523808
2.工业和信息化部电子第五研究所，广东 广州 510006
- 作者简介：
[ "王一航(1997-)，女，河南洛阳人，硕士研究生，2020年于重庆理工大学获得学士学位，主要从事稀土发光材料的研究。E-mail: tongxue_wang@163.com" ]
[ "徐华伟(1982-)，男，吉林白山人，博士，高级工程师，2012年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事光电产品测试技术的研究。E-mail: xuhuawei2018@163.com" ]
[ "吕伟(1984-)，男，吉林汪清人，博士，副研究员，2012年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事LED用发光材料的研究。E-mail: lvweiluwei@163.com" ]
- 基金信息：国家自然科学基金面上项目(51772287);广州市科技计划(202103020003)
DOI：10.37188/CJL.20220033
中图分类号：
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王一航, 连雪珠, 徐华伟, 等. 热稳定性优异的单一基质白光Cs2Li3Sr2B3(PO4)6∶Dy3+荧光粉发光性能[J]. 发光学报, 2022,43(5):676-683.
Yi-hang WANG, Xue-zhu LIAN, Hua-wei XU, et al. Single-phase White Light-emitting Phosphor Cs2Li3Sr2B3(PO4)6∶Dy3+ with Excellent Thermal Stability[J]. Chinese Journal of Luminescence, 2022,43(5):676-683.
王一航, 连雪珠, 徐华伟, 等. 热稳定性优异的单一基质白光Cs2Li3Sr2B3(PO4)6∶Dy3+荧光粉发光性能[J]. 发光学报, 2022,43(5):676-683. DOI： 10.37188/CJL.20220033.
Yi-hang WANG, Xue-zhu LIAN, Hua-wei XU, et al. Single-phase White Light-emitting Phosphor Cs2Li3Sr2B3(PO4)6∶Dy3+ with Excellent Thermal Stability[J]. Chinese Journal of Luminescence, 2022,43(5):676-683. DOI： 10.37188/CJL.20220033.
摘要
通过高温固相法合成了一系列单基质白光荧光材料Cs,2,Li,3,Sr,2,B,3,（PO,4,）,6,∶Dy,3+,，并对其结构特性、浓度猝灭机理、发光特性、温度特性、荧光寿命进行了测试与讨论。研究结果表明，该样品的发射峰主要位于490 nm和577 nm，且能在近紫外光/紫外光激发下产生单一白光。对比发现该样品在Dy,3+,掺杂浓度为7% 时荧光强度最强，且通过计算得出该样品的浓度猝灭机理是由于偶极-偶极相互作用。热稳定性分析结果表明该样品的热稳定性优异，在150 ℃下的荧光强度可达初始室温强度的97%。因此，Cs,2,Li,3,Sr,2,B,3,（PO,4,）,6,∶Dy,3+,是一种热稳定性优异的潜在的单一基质发白光材料。
Abstract
In this paper, a series of single-phase white light-emitting Cs,2,Li,3,Sr,2,B,3,(PO,4,),6,∶Dy,3+, phosphor were synthesized by high-temperature solid-phase method. Their structure characteristics, photoluminescence excitation and emission spectra, lifetime and temperature-dependent emission spectra have been discussed. The results show that the emission peaks of the sample are mainly located at 490 nm and 577 nm, and can produce uniform white light under the excitation of near-ultraviolet light/ultraviolet light. The concentration quenching mechanism has been investigated and demonstrated to be a dipole-dipole interaction. The thermal stability based on the temperature-dependent PL spectra of Cs,2,Li,3,Sr,2,B,3,(PO,4,),6,∶Dy,3+, demonstrated that this phosphor showed superior thermal behavior. Cs,2,Li,3,Sr,2,B,3,(PO,4,),6,∶Dy,3+, is a potential single white light-emitting material with excellent thermal stability.
关键词
单基质Dy3+LED荧光粉
Keywords
single-phaseDy3+white light-emittingphosphor
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