Synthesis of Uniformly Sized Mesoporous Silver Films and Their SERS Application

Article


Lim, Hyunsoo, Kim, Dabum, Kwon, Goomin, Kim, Hyun-Jong, You, Jungmok, Kim, Jeonghun, Eguchi, Miharu, Nanjundan, Ashok Kumar, Na, Jongbeom and Yamauchi, Yusuke. 2020. "Synthesis of Uniformly Sized Mesoporous Silver Films and Their SERS Application." The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter. 124 (43), pp. 23730-23737. https://doi.org/10.1021/acs.jpcc.0c07234
Article Title

Synthesis of Uniformly Sized Mesoporous Silver Films and Their SERS Application

ERA Journal ID35015
Article CategoryArticle
AuthorsLim, Hyunsoo, Kim, Dabum, Kwon, Goomin, Kim, Hyun-Jong, You, Jungmok, Kim, Jeonghun, Eguchi, Miharu, Nanjundan, Ashok Kumar, Na, Jongbeom and Yamauchi, Yusuke
Journal TitleThe Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter
Journal Citation124 (43), pp. 23730-23737
Number of Pages8
Year2020
PublisherAmerican Chemical Society
Place of PublicationUnited States
ISSN1932-7447
1932-7455
Digital Object Identifier (DOI)https://doi.org/10.1021/acs.jpcc.0c07234
Web Address (URL)https://pubs.acs.org/doi/10.1021/acs.jpcc.0c07234
AbstractNanostructured metal films and particles have been recently exploited as substrates for surface-enhanced Raman spectroscopy (SERS) studies because their intrinsic properties lead to substantial Raman scattering enhancement. Among metals, silver (Ag) is one of the efficient elements for SERS because of its potential for high Raman scattering enhancement and low molecular detection level. Substantial electric field enhancement takes place around the center of uniform mesopores as well as on the walls between the pores, leading to enhanced light scattering as well as SERS. However, aggregation and high surface energy, which are intrinsic to Ag structures, hamper the formation of mesoporous structures. In this study, we have successfully achieved the first synthesis of uniformly sized mesoporous silver films (MAgFs) using self-assembled polymeric micelles under controlled conditions. The synthetic conditions such as temperatures, applied potentials, and deposition times were fine-tuned to obtain the optimized mesoporous structure. The MAgF demonstrated a 10−9 M level of detection and 107 to 108 enhancement factor without any surface modification. The simple synthetic process, the potential of high performance, and a large detecting area of MAgFs enable us to realize the fabrication of a suitable SERS substrate.
KeywordsElectric fields; Metals; Raman spectroscopy; Deposition; Ions
ANZSRC Field of Research 20204018. Nanotechnology
340604. Electrochemistry
Public NotesFiles associated with this item cannot be displayed due to copyright restrictions.
Byline AffiliationsUniversity of Queensland
Kyung Hee University, Korea
Korea Institute of Industrial Technology (KITECH), Korea
Kookmin University, South Korea
Waseda University, Japan
School of Engineering
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