发光学报2025，Vol.46Issue(6)：1067-1074,8.DOI:10.37188/CJL.20240324
具有石榴石结构的高效近红外荧光粉Y3(InxGa1-x)2Ga3O12∶Cr3+发光性能
Luminescent Properties of Efficient Near-infrared Phosphors 3(InxGa1-x)2Ga3O12:Cr3+with Garnet Structure
摘要
Abstract
Near-infrared phosphor-converted light-emitting diodes(NIR pc-LEDs)have demonstrated significant application potential in the fields such as plant lighting and bioimaging.The luminescence efficiency and thermal sta-bility of near-infrared phosphors directly determine device performance,emphasizing the importance of developing highly efficient and thermally stable near-infrared phosphors.In this study,we synthesized an efficient near-infrared phosphor,Y3InyGa5-x-yO12∶xCr3+,with a garnet structure using a high-temperature solid-state method.The emission spectrum ranges from 600 nm to 1 000 nm.By adjusting the In3+content,we achieved spectral tuning and attained an internal quantum efficiency of up to 95.8%.Additionally,the phosphor exhibits excellent thermal stability.Experi-mental results show that at 423 K,the luminescence intensity remains at 83.6%of the room-temperature value.Fi-nally,we fabricated high-efficiency NIR pc-LED devices by combining this phosphor with commercial blue LEDs,achieving a near-infrared output power of 273.5 mW under a 350 mA current drive.These results demonstrate that this series of near-infrared phosphors and NIR pc-LED devices hold high application potential.关键词
近红外荧光粉/pc-LED/光谱调谐/发光材料Key words
near-infrared phosphor/pc-LED/spectral tuning/luminescent materials分类
数理科学引用本文复制引用
吴斌,刘乐,姚乐琪,符义兵..具有石榴石结构的高效近红外荧光粉Y3(InxGa1-x)2Ga3O12∶Cr3+发光性能[J].发光学报,2025,46(6):1067-1074,8.基金项目
江苏省创新支撑计划(软科学研究)专项资助(BK20230166) （软科学研究）
江苏省科技成果转化基金(BA2020007) Supported by Special Funding from the Innovation Support Program(Soft Science Research)of Jiangsu Province(BK20230166) （BA2020007）
Jiangsu Provincial Science and Technology Achievement Transformation Fund(BA2020007) （BA2020007）
