K_(2)SiF_(6)∶Mn^(4+)荧光玻璃陶瓷及其在激光照明中的应用  

K_(2)SiF_(6)∶Mn^(4+) Luminescent Glass Ceramics Applicable to Laser Lighting

作　　者：司帅晨 黄霖 王静 SI Shuai-chen;HUANG Lin;WANG Jing(Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China;School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China)

机构地区：[1]中山大学化学学院生物无机与合成化学教育部重点实验室,光电材料与技术国家重点实验室,广东广州510275 [2]中山大学材料科学与工程学院,广东广州510275

出　　处：《发光学报》2021年第10期1549-1558,共10页Chinese Journal of Luminescence

基　　金：国家自然科学基金和云南省自然科学基金(U1902222);国家自然科学基金(51772336,51702373,51961145101);广东省重点研发计划(2019B010926001);广州市科技计划(202007020005,201807010104,201802020033);广东省自然科学基金(2018A030313919)资助项目

摘　　要：面对市场对高功率高质量照明的强烈需求,开发兼具优良发光性能和稳定性的红色荧光玻璃陶瓷来提高白光显色指数(CRI)显得尤为重要。本文采用低温共烧结法制备了一种镶嵌K_(2)SiF_(6)∶Mn^(4+)(KSF)商用红色荧光粉的新型荧光玻璃陶瓷。研究结果表明,共烧结时前驱玻璃熔体对KSF荧光粉的热侵蚀作用较小,荧光粉的发光特性基本得到保持;相比于初始荧光粉,玻璃陶瓷的热猝灭性能得到大幅的改善;构建的激光照明光源在55.56 W/cm^(2)蓝光功率密度激发下,光通量为32.77 lm,色温为5073 K,CRI为74.86,色坐标为(0.341,0.321)。经过系统的热管理优化,KSF荧光玻璃陶瓷可望应用于高功率室内照明领域。Towards the strong market demand for high power,high quality lightings,it is particularly important to develop red fluorescent glass ceramic with excellent optical performance and stability to improve the color rendering index(CRI)of white light.In this work,a glass ceramic embedded with commercial K_(2)SiF_(6)∶Mn^(4+)(KSF)red phosphor was prepared via a low-temperature co-sintering method.The results show that the thermal erosion effect of the precursor glass melt on KSF phosphor is limited during co-sintering,so the optical properties of the phosphor are retained.Compared with the initial phosphor,the thermal quenching properties of glass ceramics are greatly improved.The fabricated laser lighting source exhibits lumen of 32.77 lm,correlated color temperature of 5073 K,CRI of 74.86,and chromaticity coordinate of(0.341,0.321),under the excitation of 55.56 W/cm^(2)blue laser diode(LD)power density.After further optimization of systematic thermal management,KSF fluorescent glass ceramic is expected to be applied in the field of high power indoor lighting.

关 键 词：K_(2)SiF_(6)∶Mn^(4+)玻璃陶瓷 低熔点玻璃 激光照明 

分 类 号：O482.31[理学—固体物理]