title: SERS detection of R6G based on a novel graphene oxide/silver nanoparticles/silicon pyramid arrays structure.
abstract: We present a novel surface-enhanced Raman scattering (SERS) substrate based on graphene oxide/silver nanoparticles/silicon pyramid arrays structure (GO/Ag/PSi). The SERS behaviors are discussed and compared by the detection of R6G. Based on the contrast experiments with PSi, GO/PSi, Ag/PSi and GO/AgA/PSi as SERS substrate, the perfect bio-compatibility, good homogeneity and chemical stability were confirmed. We also calculated the electric field distributions using Finite-difference time-domain (FDTD) analysis to further understand the GO/Ag/PSi structure as a perfect SERS platform. These experimental and theoretical results imply that the GO/Ag/PSi with regular pyramids array is expected to be an effective substrate for label-free sensitive SERS detections in areas of medicine, food safety and biotechnology.
authors.forename: C
authors.initials: C
authors.lastname: Zhang
authors.forename: S Z
authors.initials: SZ
authors.lastname: Jiang
authors.forename: Y Y
authors.initials: YY
authors.lastname: Huo
authors.forename: A H
authors.initials: AH
authors.lastname: Liu
authors.forename: S C
authors.initials: SC
authors.lastname: Xu
authors.forename: X Y
authors.initials: XY
authors.lastname: Liu
authors.forename: Z C
authors.initials: ZC
authors.lastname: Sun
authors.forename: Y Y
authors.initials: YY
authors.lastname: Xu
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.forename: B Y
authors.initials: BY
authors.lastname: Man