Ag/SiO2 surface-enhanced Raman scattering substrate for plasticizer detection

Ming Chung Wu; Ming Pin Lin; Ting-Han Lin; Wei Fang Su

doi:10.7567/JJAP.57.04FM07

Ag/SiO₂ surface-enhanced Raman scattering substrate for plasticizer detection

Ming Chung Wu
, Ming Pin Lin
, Ting-Han Lin
, Wei Fang Su

Department of Chemical and Materials Engineering

National Taiwan University
Chang Gung University

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

13 Scopus citations

Abstract

In this study, we demonstrated a simple method of fabricating a high-performance surface-enhanced Raman scattering (SERS) substrate. Monodispersive SiO₂ colloidal spheres were self-assembled on a silicon wafer, and then a silver layer was coated on it to obtain a Ag/SiO₂ SERS substrate. The Ag/SiO₂ SERS substrates were used to detect three kinds of plasticizer with different concentrations, namely, including bis(2-ethylhexyl)phthalate (DEHP), benzyl butyl phthalate (BBP), and dibutyl phthalate (DBP). The enhancement of Raman scattering intensity caused by surface plasmon resonance can be observed using the Ag/SiO₂ SERS substrates. The Ag/SiO₂ SERS substrate with a 150-nm-thick silver layer can detect plasticizers, and it satisfies the detection limit of plasticizers at 100 ppm. The developed highly sensitive Ag/SiO₂ SERS substrates show a potential for the design and fabrication of functional sensors to identify the harmful plasticizers that plastic products release in daily life.

Original language	English
Article number	04FM07
Journal	Japanese Journal of Applied Physics
Volume	57
Issue number	4
DOIs	https://doi.org/10.7567/JJAP.57.04FM07
State	Published - 04 2018

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© 2018 The Japan Society of Applied Physics.

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title = "Ag/SiO2 surface-enhanced Raman scattering substrate for plasticizer detection",

abstract = "In this study, we demonstrated a simple method of fabricating a high-performance surface-enhanced Raman scattering (SERS) substrate. Monodispersive SiO2 colloidal spheres were self-assembled on a silicon wafer, and then a silver layer was coated on it to obtain a Ag/SiO2 SERS substrate. The Ag/SiO2 SERS substrates were used to detect three kinds of plasticizer with different concentrations, namely, including bis(2-ethylhexyl)phthalate (DEHP), benzyl butyl phthalate (BBP), and dibutyl phthalate (DBP). The enhancement of Raman scattering intensity caused by surface plasmon resonance can be observed using the Ag/SiO2 SERS substrates. The Ag/SiO2 SERS substrate with a 150-nm-thick silver layer can detect plasticizers, and it satisfies the detection limit of plasticizers at 100 ppm. The developed highly sensitive Ag/SiO2 SERS substrates show a potential for the design and fabrication of functional sensors to identify the harmful plasticizers that plastic products release in daily life.",

author = "Wu, \{Ming Chung\} and Lin, \{Ming Pin\} and Ting-Han Lin and Su, \{Wei Fang\}",

note = "Publisher Copyright: {\textcopyright} 2018 The Japan Society of Applied Physics.",

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doi = "10.7567/JJAP.57.04FM07",

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T1 - Ag/SiO2 surface-enhanced Raman scattering substrate for plasticizer detection

AU - Wu, Ming Chung

AU - Lin, Ming Pin

AU - Lin, Ting-Han

AU - Su, Wei Fang

PY - 2018/4

Y1 - 2018/4

N2 - In this study, we demonstrated a simple method of fabricating a high-performance surface-enhanced Raman scattering (SERS) substrate. Monodispersive SiO2 colloidal spheres were self-assembled on a silicon wafer, and then a silver layer was coated on it to obtain a Ag/SiO2 SERS substrate. The Ag/SiO2 SERS substrates were used to detect three kinds of plasticizer with different concentrations, namely, including bis(2-ethylhexyl)phthalate (DEHP), benzyl butyl phthalate (BBP), and dibutyl phthalate (DBP). The enhancement of Raman scattering intensity caused by surface plasmon resonance can be observed using the Ag/SiO2 SERS substrates. The Ag/SiO2 SERS substrate with a 150-nm-thick silver layer can detect plasticizers, and it satisfies the detection limit of plasticizers at 100 ppm. The developed highly sensitive Ag/SiO2 SERS substrates show a potential for the design and fabrication of functional sensors to identify the harmful plasticizers that plastic products release in daily life.

AB - In this study, we demonstrated a simple method of fabricating a high-performance surface-enhanced Raman scattering (SERS) substrate. Monodispersive SiO2 colloidal spheres were self-assembled on a silicon wafer, and then a silver layer was coated on it to obtain a Ag/SiO2 SERS substrate. The Ag/SiO2 SERS substrates were used to detect three kinds of plasticizer with different concentrations, namely, including bis(2-ethylhexyl)phthalate (DEHP), benzyl butyl phthalate (BBP), and dibutyl phthalate (DBP). The enhancement of Raman scattering intensity caused by surface plasmon resonance can be observed using the Ag/SiO2 SERS substrates. The Ag/SiO2 SERS substrate with a 150-nm-thick silver layer can detect plasticizers, and it satisfies the detection limit of plasticizers at 100 ppm. The developed highly sensitive Ag/SiO2 SERS substrates show a potential for the design and fabrication of functional sensors to identify the harmful plasticizers that plastic products release in daily life.

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DO - 10.7567/JJAP.57.04FM07

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

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Ag/SiO₂ surface-enhanced Raman scattering substrate for plasticizer detection

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