Fluorescence enhancement of europium complexes by core–shell Ag@SiO 2 nanoparticles

Haixia Zhang,Xuemei Lin,Ailing Wang,Yongliang Zhao,Haibin Chu

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy（2015）

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摘要

•Three kinds of Ag@SiO2 with shell thickness of around 10, 15 and 25nm were prepared.•Six complexes of europium with halo-benzoic acid were synthesized.•Ag@SiO2 nanoparticles can significantly enhance the fluorescence of the complexes.•When the thickness of SiO2 shell is 25nm, enhancement of fluorescence is the biggest.•The order of enhancement for the complexes with different halogen atom is F更多

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关键词

Europium complex,Halobenzoic acid,Ag@SiO2 core–shell nanoparticles,Metal-enhanced fluorescence

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