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Issue 50, 2019, Issue in Progress
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Understanding metal-enhanced fluorescence and structural properties in Au@Ag core–shell nanocubes

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Abstract

Au@Ag core–shell structures have received particular interest due to their localized surface plasmon resonance properties and great potential as oxygen reduction reaction catalysts and building blocks for self-assembly. In this study, Au@Ag core–shell nanocubes (Au@AgNCs) were fabricated in a facile manner via stepwise Ag reduction on Au nanoparticles (AuNPs). The size of the Au@AgNCs and their optical properties can be simply modulated by changing the Ag shell thickness. Structural characterization has been carried out by TEM, SAED, and XRD. The metal-induced fluorescence properties of probe molecules near the Au@AgNCs were measured during sedimentation of the Au@AgNCs. The unique ring-like building block of Au@AgNCs has dual optical functions as a fluorescence quencher or fluorescence enhancement medium depending on the assembled regions.

Graphical abstract: Understanding metal-enhanced fluorescence and structural properties in Au@Ag core–shell nanocubes

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Supplementary files

Article information


Submitted
05 Jul 2019
Accepted
09 Sep 2019
First published
17 Sep 2019

This article is Open Access

RSC Adv., 2019,9, 29232-29237
Article type
Paper

Understanding metal-enhanced fluorescence and structural properties in Au@Ag core–shell nanocubes

D. Jung, J. M. Kim, H. J. Yun, G. Yi, J. Y. Cho, H. Jung, G. Lee, W. Chae and K. M. Nam, RSC Adv., 2019, 9, 29232
DOI: 10.1039/C9RA05103A

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    [Original citation] - Published by The Royal Society of Chemistry.

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