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Cited by 426

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Large-Scale Hot Spot Engineering for Quantitative SERS at the Single-Molecule Scale

Chen, Hung-Ying, Lin, Meng-Hsien, Wang, Chun-Yuan, Chang, Yu-Ming, Gwo, Shangjr·2015·Journal of the American Chemical Society
DOI 10.1021/jacs.5b09111
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Abstract

Quantitative surface enhanced Raman spectroscopy (SERS) requires precise control of Raman enhancement factor and detection uniformity across the SERS substrate. Here, we show that alkanethiolate ligand-regulated silver (Ag) nanoparticle films can be used to achieve quantitative SERS measurements down to the single-molecule level. The two-dimensional hexagonal close-packed superlattices of Ag nanoparticles formed in these films allow for SERS detection over a large area with excellent uniformity and high Raman enhancement factor. In particular, the SERS signal from the thiolate ligands on Ag nanoparticle surfaces can be utilized as a stable internal calibration standard for reproducible quantitative measurements. We demonstrate the capability of quantitative SERS by measuring the areal densities of crystal violet molecules embedded in an ultrathin spin-on-glass detection "hot zone", which is a planar and uniformly enhanced region several nanometers above the Ag nanoparticles. The Raman measurement results exhibit a linear response over a wide dynamic range of analyte concentration.

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Metadata

Authors
Chen, H.-Y., Lin, M.-H., Wang, C.-Y., Chang, Y.-M., & Gwo, S.
Venue
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Published
2015-10-15
Volume
137
Issue
42
Pages
13698-13705
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
DOI
10.1021/jacs.5b09111
OpenAlex
W2299637118
Cited by
426
References
31
FWCI
13.34
Type
journal article
Language
en
Open access
closed

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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