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Fluorescent Enhancement of CaF 2 : Nd 3+ Nanoparticles through a Concentration‐Gradient Core/Shell Hybrid Structure
Author(s) -
Wang Tan,
Wang Bo,
He Qingguo,
Cheng Jiangong
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202003778
Subject(s) - activator (genetics) , doping , materials science , inner core , fluorescence , ion , shell (structure) , nanoparticle , core (optical fiber) , layer (electronics) , chemical engineering , nanotechnology , analytical chemistry (journal) , chemistry , composite material , optoelectronics , chromatography , optics , physics , organic chemistry , biochemistry , engineering , gene
In this contribution, we provided an efficient core/shell structure for CaF 2 : Nd 3+ based core/shell NPs, which has several traits below: hybrid core; homogeneous or heterogeneous core‐host and shell‐host; concentration‐gradient distribution of both doping ions and activator from inner to outer shell layer. Finally, A successive layer‐by‐layer doping method was utilized to synthesize various core‐based and concentration‐gradient hybrid Ce 3+ , Li + and activator (Nd 3+ ) shell layer core/shell(C/S) NPs, which could enhance the fluorescence of the CaF 2 : 6Nd(mol %) C/S NPs up to 21.4 times than that of core‐only NPs by doping much denser hybrid Ce 3+ and activator Nd 3+ in per unit volume and overcoming surface quenching.