Quantifying the Contribution of Chemical Enhancement to SERS: A Model Based on the Analysis of Light-Induced Degradation Processes

Bo Liu; Bonito Thielert; Andreas Reutter; Rainer Stosch; Peter Lemmens

doi:10.1021/acs.jpcc.9b04526

Quantifying the Contribution of Chemical Enhancement to SERS: A Model Based on the Analysis of Light-Induced Degradation Processes

Bo Liu^*
, Bonito Thielert^*
, Andreas Reutter
, Rainer Stosch
, Peter Lemmens^*

^*Corresponding author for this work

Technische Universität Braunschweig

Research output: Contribution to journal › Article › Research › peer review

Abstract

Surface-enhanced Raman scattering (SERS) is of growing importance in different fields, from clinical analysis/chemistry to food industry. For a better insight into the complex light-matter interaction processes that are underlying the intensity enhancement, it is essential to experimentally distinguish and quantify the contributions based on the chemical mechanism (CM) with respect to the electromagnetic mechanism. Here, we present a model to estimate the relative CM response of Raman modes by analyzing light-induced degradation of target molecules on designed metal/semiconductor SERS substrates. The resulting intensity evolution is described by a biexponential function with two model parameters that allow a differentiation of the enhancement processes. Our work thereby provides a means for a better understanding of CM and will be advantageous for an application of intensity-based quantitative SERS techniques.

Original language	English
Pages (from-to)	19119-19124
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	123
Issue number	31
E-pub ahead of print	12 Jul 2019
DOIs	https://doi.org/10.1021/acs.jpcc.9b04526
Publication status	Published - 8 Aug 2019
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/acs.jpcc.9b04526

Cite this

@article{0d99ee19986c421c94ecb7f3e55101f7,

title = "Quantifying the Contribution of Chemical Enhancement to SERS: A Model Based on the Analysis of Light-Induced Degradation Processes",

abstract = "Surface-enhanced Raman scattering (SERS) is of growing importance in different fields, from clinical analysis/chemistry to food industry. For a better insight into the complex light-matter interaction processes that are underlying the intensity enhancement, it is essential to experimentally distinguish and quantify the contributions based on the chemical mechanism (CM) with respect to the electromagnetic mechanism. Here, we present a model to estimate the relative CM response of Raman modes by analyzing light-induced degradation of target molecules on designed metal/semiconductor SERS substrates. The resulting intensity evolution is described by a biexponential function with two model parameters that allow a differentiation of the enhancement processes. Our work thereby provides a means for a better understanding of CM and will be advantageous for an application of intensity-based quantitative SERS techniques.",

author = "Bo Liu and Bonito Thielert and Andreas Reutter and Rainer Stosch and Peter Lemmens",

note = "Funding Information: We gratefully acknowledge the support of the Braunschweig International Graduate School of Metrology B-IGSM, DFG Research Training Group GrK1952 “Metrology for Complex Nanosystems” and DFG − EXS 2123 QuantumFrontiers, Light and Matter at the Quantum Frontier. We thank Stefan Wundrack for important discussion contributions.",

year = "2019",

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doi = "10.1021/acs.jpcc.9b04526",

language = "English",

volume = "123",

pages = "19119--19124",

journal = "Journal of Physical Chemistry C",

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AU - Liu, Bo

AU - Thielert, Bonito

AU - Reutter, Andreas

AU - Stosch, Rainer

AU - Lemmens, Peter

N1 - Funding Information: We gratefully acknowledge the support of the Braunschweig International Graduate School of Metrology B-IGSM, DFG Research Training Group GrK1952 “Metrology for Complex Nanosystems” and DFG − EXS 2123 QuantumFrontiers, Light and Matter at the Quantum Frontier. We thank Stefan Wundrack for important discussion contributions.

PY - 2019/8/8

Y1 - 2019/8/8

N2 - Surface-enhanced Raman scattering (SERS) is of growing importance in different fields, from clinical analysis/chemistry to food industry. For a better insight into the complex light-matter interaction processes that are underlying the intensity enhancement, it is essential to experimentally distinguish and quantify the contributions based on the chemical mechanism (CM) with respect to the electromagnetic mechanism. Here, we present a model to estimate the relative CM response of Raman modes by analyzing light-induced degradation of target molecules on designed metal/semiconductor SERS substrates. The resulting intensity evolution is described by a biexponential function with two model parameters that allow a differentiation of the enhancement processes. Our work thereby provides a means for a better understanding of CM and will be advantageous for an application of intensity-based quantitative SERS techniques.

AB - Surface-enhanced Raman scattering (SERS) is of growing importance in different fields, from clinical analysis/chemistry to food industry. For a better insight into the complex light-matter interaction processes that are underlying the intensity enhancement, it is essential to experimentally distinguish and quantify the contributions based on the chemical mechanism (CM) with respect to the electromagnetic mechanism. Here, we present a model to estimate the relative CM response of Raman modes by analyzing light-induced degradation of target molecules on designed metal/semiconductor SERS substrates. The resulting intensity evolution is described by a biexponential function with two model parameters that allow a differentiation of the enhancement processes. Our work thereby provides a means for a better understanding of CM and will be advantageous for an application of intensity-based quantitative SERS techniques.

UR - https://www.scopus.com/pages/publications/85071489549

U2 - 10.1021/acs.jpcc.9b04526

DO - 10.1021/acs.jpcc.9b04526

M3 - Article

AN - SCOPUS:85071489549

SN - 1932-7447

VL - 123

SP - 19119

EP - 19124

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 31

ER -

Quantifying the Contribution of Chemical Enhancement to SERS: A Model Based on the Analysis of Light-Induced Degradation Processes

Abstract

ASJC Scopus subject areas

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QuantumFrontiers: Cluster of Excellence 2123/1: Light and Matter at the Quantum Frontier

Cite this

Quantifying the Contribution of Chemical Enhancement to SERS: A Model Based on the Analysis of Light-Induced Degradation Processes

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Projects

QuantumFrontiers: Cluster of Excellence 2123/1: Light and Matter at the Quantum Frontier

Cite this