发光学报2024，Vol.45Issue(6)：932-942,11.DOI:10.37188/CJL.20240063
Zn2+共掺提高Cr3+掺杂钙铌镓石榴石热稳定性
Improving Thermal Stability of Cr3+Doped Calcium Niobium Gallium Garnet Through Zn2+Codoping
摘要
Abstract
Near-infrared phosphor-converted light-emitting diodes(pc-LEDs)are characterized by their compact size and high efficiency,making them a promising solution for various applications in non-destructive testing and biological imaging.In this paper,we successfully synthesized Ca3Nb1.6875Ga3.1875O12:Cr3+phosphor through the high-temperature solid-state method.This phosphor displays broadband near-infrared emission ranging from 650 nm to 1 000 nm,with a peak wavelength of 770 nm when excited by 460 nm blue light.The crystal structure and spectral data of the material were systematically analyzed,and parameters such as the crystal field strength of Cr3+in CNGG matrix were calculated.The thermal stability of phosphorescence was significantly improved by introducing Zn2+,and the possible reasons were analyzed.The combination of CNGG:Cr3+with a blue light chip was encapsulated into a near-infrared pc-LED,leading to its successful application in the realm of biological tissue imaging.关键词
近红外荧光粉/宽带发射/近红外荧光粉转换发光二极管Key words
near infrared phosphor/broadband emission/near-infrared phosphor-convered light-emitting diodes(pc-LEDs)分类
数理科学引用本文复制引用
楼哲,何坤,梁思思,刘乐,吴会杰,朱浩淼..Zn2+共掺提高Cr3+掺杂钙铌镓石榴石热稳定性[J].发光学报,2024,45(6):932-942,11.基金项目
国家重点研发计划项目(2021YFB3500401) （2021YFB3500401）
福建省自然科学基金面上项目(2023J01214) （2023J01214）
中国科学院海西研究院自主部署项目(CXZX-2022-GH11)Supported by National Key R&D Program of China(2021YFB3500401) （CXZX-2022-GH11）
Natural Science Foundation of Fujian Province(2023J01214) （2023J01214）
Autonomous Deployment Project of Haixi Institute,CAS(CXZX-2022-GH11) （CXZX-2022-GH11）
