TY - JOUR
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
N1 - Publisher Copyright:
© 2018 The Japan Society of Applied Physics.
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.
UR - http://www.scopus.com/inward/record.url?scp=85044456506&partnerID=8YFLogxK
U2 - 10.7567/JJAP.57.04FM07
DO - 10.7567/JJAP.57.04FM07
M3 - 文章
AN - SCOPUS:85044456506
SN - 0021-4922
VL - 57
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 4
M1 - 04FM07
ER -