Statistical Analysis of Surface-Enhanced Raman Scattering Enhancement Distributions

dos Santos, Diego Pereira

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Statistical Analysis of Surface-Enhanced Raman Scattering Enhancement Distributions

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Author(s):	dos Santos, Diego Pereira Total Authors: 1
Document type:	Journal article
Source:	Journal of Physical Chemistry C; v. 124, n. 12, p. 6811-6821, MAR 26 2020.
Web of Science Citations:	0
Abstract
Surface-enhanced Raman scattering (SERS) at low analyte concentrations presents strong intensity fluctuations. In this investigation, such fluctuations were analyzed with multivariate curve resolution by alternating least squares (MCR-ALS). The signal decomposition provided by this multivariate statistical analysis permits a characterization of the populations of hot spots (HSs) in the sample from the point of view of localized surface plasmon resonance conditions. The SERS intensity distributions for each population showed characteristic Pareto-like shapes, associated with the local field enhancement distribution around HSs. This analysis leads to a more in-depth microscopic investigation of SERS substrates by providing a characterization of the near-field properties of HSs. (AU)

FAPESP's process:	16/21070-5 - Vibrational spectroscopy with spatial resolution
Grantee:	Mauro Carlos Costa Ribeiro
Support Opportunities:	Research Projects - Thematic Grants

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