发光学报2023，Vol.44Issue(2)：289-297,9.DOI:10.37188/CJL.20220336
808 nm/980 nm近红外光激发下CaSc2O4:Er,Nd纳米晶的上转换发光特性
Upconversion Luminescence of CaSc2O4:Er, Nd Nanocrystals Under 808 nm/980 nm Near Infrared Excitation
摘要
Abstract
A series of CaSc2O4:Er3+,Nd3+ nanocrystals were synthesized by the hydrothermal method. The lumines-cence properties of the CaSc2O4:Er3+,Nd3+ oxide crystals in the visible-light and near infrared (NIR) regions were in-vestigated in detail as the Nd3+ concentrations and excited wavelengths vary. Under 808 nm excitation, the lumines-cence intensity of Er3+ ions appears to be enhanced as the concentration of Nd3+ ions increase. The relative red intensi-ty also has the slight enhancement. Under 980 nm excitation, Nd3+ ions hardly absorb 980 nm photons, only the ab-sorption and emission of Er3+ ions are found. The relative red intensity has no change. Furthermore, only the emis-sion of Er3+ ion was observed in NIR spectrum, which is consist as the visible spectrum. The detailed study reveals the possible upconversion luminescence (UCL) mechanism involved in a novel CaSc2O4:Er3+,Nd3+ nanocrystals un-der 808 nm and 980 nm NIR excitation.关键词
上转换发光/Nd3+ 离子/Er3+离子/CaSc2O4纳米晶/近红外激发Key words
upconversion luminescence (UCL)/Nd3+ ions/Er3+ ions/CaSc2O4 nanocrystals/near infrared (NIR) excitation分类
数理科学引用本文复制引用
崔文豪,彭亚茹,李静,黄宇欣,陈力..808 nm/980 nm近红外光激发下CaSc2O4:Er,Nd纳米晶的上转换发光特性[J].发光学报,2023,44(2):289-297,9.基金项目
吉林省自然科学基金(20220101024JC,20200201247JC,20170520110JH) （20220101024JC,20200201247JC,20170520110JH）
国家自然科学基金(11504029,11474035) （11504029,11474035）
