发光学报2025，Vol.46Issue(7)：1283-1291,9.DOI:10.37188/CJL.20250069
Yb3+/Eu3+共掺Gd3Zn2GaGe2O12荧光粉制备及其上转换发光
Preparation and Upconversion Luminescence of Yb3+/Eu3+Co-doped Gd3Zn2GaGe2O12 Phosphors
摘要
Abstract
Near-infrared excitable multicolor visible upconverting phosphors have been become a hot research topic in recent years,amongst which the explorations on red upconversion feature significant interests.In this paper,a se-ries of Eu3+/Yb3+codoped Gd3Zn2GaGe2O12(abbreviated as GZGGO:Eu3+,Yb3+)upconverting phosphors were pre-pared by high temperature solid state method.By means of X-ray powder diffractometer(XRD),Rietveld refine-ment,scanning electron microscope(SEM),and energy-dispersive X-ray spectrometry(EDS),the phase identifica-tion,crystal structure,particle morphologies and size distribution,and elemental distribution were systematically an-alyzed.Pumped by a NIR～980 nm laser,the GZGGO:Eu3+,Yb3+sample yields a series of upconversion bands in visible region,exhibiting variable colors from light green to orange,to orange red,and to red with the naked eye.A typical two-photon absorption process was responsible for the observed upconversion of Eu3+/Yb3+couple,and an opti-mal sample was determined to be GZGGO:35％Eu3+,20％Yb3+.Temperature-dependent upconversion was carried for the optimized sample for probing its relatively good performance of optical thermal stability.Further development of Eu3+/Yb3+codoping would lead to breakthrough in fabricating novel red upconverting materials,and the related visual color control will offer big potentials in the application of multicolor fluorescent anti-counterfeiting.关键词
稀土离子/Eu3+/Yb3+/上转换/能量传递Key words
rare earth ions/Eu3+/Yb3+/upconversion/energy transfer分类
数理科学引用本文复制引用
方芳,刘海晟,陈喆昊,李本春,张大伟,禹德朝..Yb3+/Eu3+共掺Gd3Zn2GaGe2O12荧光粉制备及其上转换发光[J].发光学报,2025,46(7):1283-1291,9.基金项目
上海市自然科学基金面上项目(23ZR1445000)Supported by Shanghai Natural Science Foundation(23ZR1445000) （23ZR1445000）
