Improved fluorescence properties of core–sheath electrospun nanofibers sensitized by silver nanoparticles
作者： Shipeng Wen , Rong Zhang , Shui Hu , Liqun Zhang , Li Liu
DOI: 10.1016/J.OPTMAT.2015.05.038
关键词:
摘要: Abstract Silver nanoparticles (Ag-NPs) were used to enhance the fluorescence properties of nanofibers containing Tb(acac)3phen (Tb = terbium, acac = acetylacetone, phen = 1,10-phenanthroline) complex. Tb(acac)3phen/PLLA//Ag-NPs/PVP (PLLA = polylacticacid, PVP = polyvinylpyrrolidone) core–sheath prepared by coaxial electrospinning. SEM images demonstrated that fibers had an average diameter 550 nm. TEM illustrated Ag-NPs and uniformly dispersed in outer inner fibrous layers form molecular clusters, respectively. The intensity with a molar ratio Ag/Tb 1 increased 69%, quantum efficiency 53%, lifetime 4% over those without because localized surface plasmon resonance (LSPR) effect Ag-NPs. structure have great potential wide range applications.
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