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Enhancement of red upconversion emission intensity of Ho3+ions in NaLuF4∶Yb3+/Ho3+/Ce3+@NaLuF4 core-shell nanoparticles
文献摘要：
The red upconversion emission of Ho3+ions,in the optical window of biological tissue,exhibits excellent prospects in biological applications.This study aims to enhance the red upconversion emission intensity of Ho3+ions in NaLuF4∶20％Yb3+/2％Ho3+/12％Ce3+nanoparticles through building different core-shell structures with different excitation wavelengths.A significantly enhanced red upconversion emission with a higher red-to-green ratio was successfully obtained in NaLuF4∶20％Yb3+/2％Ho3+/12％Ce3+@NaLuF4 core-shell nanoparticles by introducing the Yb3+and Yb3+/Nd3+ions into the NaLuF4 shell,with enhancement of the red emission occurring when Yb3+and Nd3+ions in the shell transfer more exci-tation energy to the Ho3+ions.Investigation of the red emission enhancement mechanism is based on spectral characteristics and lifetimes.We examined the synergistic effect of dual-wavelength co-exci-tation NaLuF4∶20％Yb3+/2％Ho3+/12％Ce3+@NaLuF4∶10％Yb3+/15％Nd3+core-shell nanoparticles to establish optimal excitation conditions.It is hoped that this method,using red upconversion emission core-shell nanoparticles with multi-mode excitation,can provide new ways to expand the applications of rare-earth luminescent materials in biomedicine and anti-counterfeiting.
文献关键词：
中图分类号：
[1] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
[2] 经济（F） / 工业经济（F4） / 中国工业经济（F42）
[3] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
作者姓名：
Wei Gao;Xiaotong Cheng;Yu Xing;Shanshan Han;Binhui Chen;Qingyan Han;Xuewen Yan;Jihong Liu;Lin Liu;Jun Dong
作者机构：
School of Electronic Engineering,Xi'an University of Posts&Telecommunications,Xi'an 710121,China
文献出处：
稀土学报（英文版）
引用格式：
[1]Wei Gao;Xiaotong Cheng;Yu Xing;Shanshan Han;Binhui Chen;Qingyan Han;Xuewen Yan;Jihong Liu;Lin Liu;Jun Dong-.Enhancement of red upconversion emission intensity of Ho3+ions in NaLuF4∶Yb3+/Ho3+/Ce3+@NaLuF4 core-shell nanoparticles)[J].稀土学报（英文版）,2022(04):517-525
A类：
Ho3+ions,NaLuF4,Ce3+nanoparticles,Nd3+ions,Nd3+core
B类：
Enhancement,red,upconversion,emission,intensity,shell,optical,window,biological,tissue,exhibits,excellent,prospects,applications,This,study,aims,through,building,different,structures,excitation,wavelengths,significantly,enhanced,higher,green,ratio,was,successfully,obtained,by,introducing,Yb3+and,into,enhancement,occurring,when,transfer,more,energy,Investigation,mechanism,spectral,characteristics,lifetimes,We,examined,synergistic,effect,dual,establish,optimal,conditions,It,hoped,that,this,method,using,multi,mode,provide,new,ways,expand,rare,earth,luminescent,materials,biomedicine,anti,counterfeiting
AB值：
0.367505
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