发光学报2024，Vol.45Issue(7)：1123-1133,11.DOI:10.37188/CJL.20240094
激光照明应用MgO-La3Si6N11∶Ce3+复合荧光玻璃的制备及性能优化
Fabrication and Performance Optimization of MgO-La3 Si6 N11∶Ce3+Composite Phosphor-in-glass for Laser Lighting
摘要
Abstract
Phosphor-in-glass(PiG)materials have great potential in the field of laser lighting.However,the low thermal conductivity of the glass matrix leads to serious thermal quenching issues under working conditions,thus re-ducing the luminous performance.To improve the heat dissipation performance of PiG,high thermal conductivity MgO particles have been introduced into La3Si6N11∶Ce3+(LSN∶Ce3+)nitride PiG to create MgO-LSN∶Ce3+composite PiG.By optimizing the fabrication process,MgO content,and glass thickness,the composite PiG with the best com-prehensive performance achieved a luminescent saturation threshold of 2.08 W/mm2 under laser excitation,which is 38.7%higher than the MgO-free PiG sample(1.5 W/mm2).The maximum luminous flux also increased by 44.6%,from 383 lm to 554 lm.Furthermore,due to the improved scattering performance,the luminous uniformity of MgO-LSN∶Ce3+composite PiG was significantly optimized.Finally,by further introducing red-emitting CaAlSiN3∶Eu2+(CASN∶Eu2+)phosphors into the composite PiG and adjusting the ratio between LSN∶Ce3+and CASN∶Eu2+,a high-quality laser-driven white light source with a color rendering index(Ra)of 85.5 can be achieved.关键词
激光照明/氮化物荧光粉/荧光玻璃/散热性能/发光均匀性Key words
laser lighting/nitride phosphor/phosphor-in-glass/heat dispersion/light uniformity分类
数理科学引用本文复制引用
徐涛,邾强强,王国娟,翟玥,张宏,王乐..激光照明应用MgO-La3Si6N11∶Ce3+复合荧光玻璃的制备及性能优化[J].发光学报,2024,45(7):1123-1133,11.基金项目
国家自然科学基金(12274387,62075203,12104431) （12274387,62075203,12104431）
浙江省重点研发项目(2022C01127) Supported by National Natural Science Foundation of China(12274387,62075203,12104431) （2022C01127）
Key Research and Develop-ment Program of Zhejiang Province(2022C01127) （2022C01127）
