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dc.contributor.authorChen, Xuen
dc.contributor.authorZhou, Dongleien
dc.contributor.authorXu, Wenen
dc.contributor.authorZhu, Jinyangen
dc.contributor.authorPan, Gencaien
dc.contributor.authorYin, Zeen
dc.contributor.authorWang, Heen
dc.contributor.authorZhu, Yongshengen
dc.contributor.authorShaobo, Cuien
dc.contributor.authorSong, Hongweien
dc.identifier.citationChen, X., Zhou, D., Xu, W., Zhu, J., Pan, G., Yin, Z., et al. (2017). Fabrication of Au-Ag nanocage@NaYF4@NaYF4:Yb, Er Core-Shell Hybrid and its Tunable Upconversion Enhancement. Scientific Reports, 7(1), 41079-.en
dc.description.abstractLocalized electric filed enhancement by surface plasmon resonance (SPR) of noble metal nanoparticles is an effective method to amplify the upconversion luminescence (UCL) strength of upconversion nanoparticles (UCNPs), whereas the highly effective UCL enhancement of UCNPs in colloids has not been realized until now. Here, we designed and fabricated the colloidal Au-Ag nanocage@NaYF4@NaYF4:Yb,Er core-shell hybrid with different intermediate thickness (NaYF4) and tunable SPR peaks from visible wavelength region to NIR region. After the optimization of the intermediate spacer thickness (~7.5 nm) of NaYF4 NPs and the SPR peak (~950 nm) of noble metal nanoparticles, an optimum enhancement as high as ~25 folds was obtained. Systematic investigation indicates that UCL enhancement mainly originates from the influence of the intermediate spacer and the coupling of Au-Ag nanocages with the excitation electromagnetic field of the UCNPs. Our findings may provide a new thinking on designing highly effective metal@UCNPs core-shell hybrid in colloids.en
dc.format.extent8 p.en
dc.relation.ispartofseriesScientific Reportsen
dc.rights© 2017 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
dc.subjectDRNTU::Engineering::Chemical engineeringen
dc.titleFabrication of Au-Ag nanocage@NaYF4@NaYF4:Yb,Er core-shell hybrid and its tunable upconversion enhancementen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen
dc.description.versionPublished versionen
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