低热猝灭新型Sr3Ga2Ge4O14∶Sm3+橙红色荧光粉

杨伟斌; 熊飞兵; 杨寅; 周琼; 谢岚驰; 凌爽; 罗新

doi:10.37188/CJL.20220055

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低热猝灭新型Sr₃Ga₂Ge₄O₁₄∶Sm³⁺橙红色荧光粉

材料合成及性能 | 更新时间：2022-10-19

- 低热猝灭新型Sr₃Ga₂Ge₄O₁₄∶Sm³⁺橙红色荧光粉
  增强出版
- Novel Orange-red-emitting Sr₃Ga₂Ge₄O₁₄∶Sm³⁺Phosphors with Low Thermal Quenching
- 发光学报 2022年43卷第6期页码：879-890
- 作者机构：
  
  1.厦门理工学院光电与通信工程学院，福建厦门 361024
  2.厦门理工学院福建省光电技术与器件重点实验室，福建厦门 361024
- 作者简介：
  
  [ "杨伟斌（1997-），男，福建长泰人，硕士研究生，2019年于厦门理工学院获得学士学位，主要从事稀土发光材料的研究。E-mail: 543644717@qq.com" ]
  [ "熊飞兵（1976-），男，江西丰城人，博士，教授，2007年于中国科学院福建物质结构研究所获得博士学位，主要从事稀土发光材料的研究。E-mail: fbxiong@xmut.edu.cn" ]
- 基金信息：
  
  福建省自然科学基金(2020J01297)
- DOI：10.37188/CJL.20220055
  中图分类号：
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杨伟斌, 熊飞兵, 杨寅, 等. 低热猝灭新型Sr₃Ga₂Ge₄O₁₄∶Sm³⁺橙红色荧光粉[J]. 发光学报, 2022,43(6):879-890.

YANG Wei-bin, XIONG Fei-bing, YANG Yin, et al. Novel Orange-red-emitting Sr₃Ga₂Ge₄O₁₄∶Sm³⁺Phosphors with Low Thermal Quenching[J]. Chinese Journal of Luminescence, 2022,43(6):879-890.
杨伟斌, 熊飞兵, 杨寅, 等. 低热猝灭新型Sr₃Ga₂Ge₄O₁₄∶Sm³⁺橙红色荧光粉[J]. 发光学报, 2022,43(6):879-890. DOI： 10.37188/CJL.20220055.

YANG Wei-bin, XIONG Fei-bing, YANG Yin, et al. Novel Orange-red-emitting Sr₃Ga₂Ge₄O₁₄∶Sm³⁺Phosphors with Low Thermal Quenching[J]. Chinese Journal of Luminescence, 2022,43(6):879-890. DOI： 10.37188/CJL.20220055.

摘要

采用高温固相法制备一系列新型Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+,（,x=,0~0.20）及Sr,2.88,Ga,2,Ge,4,O,14,∶0.06Sm,3+,，0.06,M,（,M,=Li,+,，Na,+,，K,+,）荧光粉，通过物相形貌、荧光光谱、热稳定性及CIE色度坐标等分析手段对样品性能进行了详细研究。根据不同掺杂浓度Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+,的荧光发射谱，发现Sm,3+,最佳掺杂浓度为,x=,0.06，其荧光浓度猝灭归因于Sm,3+,之间的电偶极-电偶极相互作用。研究发现，通过共掺杂,M,（,M,=Li,+,，Na,+,，K,+,）做电荷补偿离子可以提升Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+,的发光性能。此外，随着Sm,3+,掺杂浓度提高，其荧光寿命不断减小。最后探讨了Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+,的CIE色度坐标和热稳定性，其CIE色度坐标位于橙红光区域，且在423 K的发光强度大概为其室温的95%。研究表明，Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+,作为新型橙红荧光粉有望应用于白光发光二极管（WLED）。

Abstract

A series of Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+,（,x,=0-0.20）and Sr,2.88,Ga,2,Ge,4,O,14,∶0.06Sm,3+,，0.06,M,（,M,= Li,+,， Na,+,， K,+,）phosphors were prepared ,via, the high temperature solid-state reaction. The phase structure， crystal morphology， fluorescent spectra， temperature-dependent spectra， and CIE chromaticity coordinates of the samples were investigated. The optimal doping concentration in Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+, was ,x,=0.06， and the concentration quenching could be ascribed to the dipole-dipole interaction between Sm,3+ ,ions. The luminescent emission intensities of Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+, were greatly enhanced by co-doped ,M,（,M,=Li,+,， Na,+,， K,+,）ions as charge compensator. The fluorescent decay lifetime became shorter when increasing Sm,3+, concentration. The CIE chromaticity coordinates and thermal stability properties of Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+ ,were discussed. The CIE chromaticity coordinates of Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+, were located within the orange-red spectral region and the luminescent emission intensities could remain 95% of that at room temperature. All these results indicated that Sr,3-,x,Ga,2,Ge,4,O,14,∶,x,Sm,3+ ,could be a potential candidate as a novel orange-red emitting component applied in white light emitting diode（WLED）.

关键词

Sr3Ga2Ge4O14Sm3+电荷补偿剂光致发光白光发光二极管（WLED）

Keywords

Sr3Ga2Ge4O14Sm3+charge compensatorphotoluminescencewhite light emitting diode（WLED）

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