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Issue 55, 2019
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Ordered mesoporous silver superstructures with SERS hot spots

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Abstract

We have developed a method to fabricate freestanding highly ordered porous silver (Ag) superstructures by an “assembly-based nanoparticle (NP) coalescence” method. The synthesized superstructures have high-density mesopores periodically distributed over the entire structure, on which a highly enhanced electromagnetic field was observed by electron energy loss spectroscopy. Thus, the surface enhanced Raman scattering (SERS) signal of Rhodamine 6G in the ordered mesopores is 8.2 times higher compared to that in disordered porous superstructures. The results demonstrate that these freestanding mesoporous Ag superstructures are potentially good SERS substrates.

Graphical abstract: Ordered mesoporous silver superstructures with SERS hot spots

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Article information


Submitted
30 Apr 2019
Accepted
12 Jun 2019
First published
13 Jun 2019

Chem. Commun., 2019,55, 7982-7985
Article type
Communication

Ordered mesoporous silver superstructures with SERS hot spots

X. Wu, X. Fan, Z. Yin, Y. Liu, J. Zhao and Z. Quan, Chem. Commun., 2019, 55, 7982
DOI: 10.1039/C9CC03337H

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