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Enhanced luminescence of CaF 2 :Er 3+ /Nd 3+ nanoparticles coated by fluorinated β‐diketone
Author(s) -
Song Limei,
Lu Sinan,
Shi Ying,
Fang Youlu,
Jia Yuan,
Zhu Gang,
Li Jiangtao
Publication year - 2021
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3963
Subject(s) - luminescence , nanoparticle , lanthanide , ion , materials science , doping , particle size , analytical chemistry (journal) , excitation , ligand (biochemistry) , photochemistry , chemistry , nanotechnology , organic chemistry , optoelectronics , physics , biochemistry , receptor , quantum mechanics
Abstract In this study, several CaF 2 nanoparticles doped with individual ions Nd 3+ and Er 3+ were synthesized with ligands pentafluorobenzoyl trifluoroacetone (PBTA) and 2‐naphthoyltrifluoroacetone (NTA), which served as modifiers. Influence of the modifiers on the luminescence properties of the nanoparticles was investigated. The as‐prepared nanoparticles had a similar size and dispersion with an irregular spherical shape, which reduced the influence of particle size on the luminescence of the nanoparticles. The luminescence spectra of these nanoparticles showed the characteristic luminescence of the central lanthanide ions under excitation of the maximum excitation wavelength. Compared with nanoparticles modified by the NTA ligand, nanoparticles modified by the PBTA ligand possessed stronger luminescence intensity for the doping Nd 3+ or Er 3+ ions.