NaBaPO_(4):Ce^(3+),Er^(3+)近红外宽带量子剪裁发光特性  

Near-infraredbroad-band Quantum Cutting Luminescent Property of NaBaPO_(4):Ce^(3+),Er^(3+)

作　　者：洪锦泉 HONG Jinquan(College of Physics and Electronic Information Engineering, Minjiang University, Fuzhou, Fujian 350108, China)

机构地区：[1]闽江学院物理与电子信息工程学院,福建福州350108

出　　处：《闽江学院学报》2022年第2期15-21,共7页Journal of Minjiang University

基　　金：教育部产学合作协同育人项目(202002091056);福建省教育厅中青年教师教育科研项目(JAT200405);福建省自然科学基金科研项目(2021J011029)。

摘　　要：采用高温固相法制备NaBaPO_(4):Ce^(3+),Er^(3+)荧光材料。测量了NaBaPO_(4):Ce^(3+),Er^(3+)近红外激发光谱与发射光谱。通过测量发射光谱,发现303 nm光激发下,实现了NaBaPO_(4):Ce^(3+),Er^(3+)近红外(1534 nm)发射;通过测量相应的近红外发射的激发光谱,发现Ce^(3+):4f-5d的宽带激发峰,说明Ce^(3+)-Er^(3+)之间存在能量传递。测量了NaBaPO_(4):Ce^(3+),Er^(3+)荧光光谱与荧光衰减曲线,研究了Ce^(3+)-Er^(3+)之间的能量传递机制与近红外量子剪裁发光机制。NaBaPO_(4)Ce^(3+),Er^(3+) phosphors were prepared by the solid-state reaction.The near-infrared(NIR)emission spectra and excitation spectra of NaBaPO_(4)Ce^(3+),Er^(3+) were measured.According to emission spectra,NIR emission with 1534 nm of NaBaPO_(4)Ce^(3+),Er^(3+) occurs under the excitation of 303 nm in NaBaPO_(4)Ce^(3+),Er^(3+) phosphors.According to the corresponding excitation spectra,the broad-band excitation which originates from 4f-5d transition of Ce^(3+) is found.It demonstrates the existence of energy transfer(ET)between Ce^(3+) and Er^(3+).The fluorescence spectra and decay curves were measured,and the ET mechanism between Ce^(3+) and Er^(3+) and NIR quantum cutting emission mechanism of NaBaPO_(4)Ce^(3+),Er^(3+) were researched.

关 键 词：宽带 量子剪裁 Ce^(3+) Er^(3+) 

分 类 号：O482.3[理学—固体物理]