title: Novel and simple route to fabricate 2D ordered gold nanobowl arrays based on 3D colloidal crystals.
abstract: In this study, we present a new method to fabricate large-area two-dimensionally (2D) ordered gold nanobowl arrays based on 3D colloidal crystals by wet chemosynthesis, which combines the advantages of a very simple preparation and an applicability to "real" nanomaterials. By combination of in situ growth of gold nanoshell (GNSs) arrays based on three-dimensional (3D) colloidal silica crystals, a monolayer ordered reversed GNS array (2D ordered GNS array) was conveniently manufactured by an acrylic ester modified biaxial oriented polypropylene (BOPP). 2D ordered gold nanobowl array with adjustable periodic holes, good stability, reproducibility, and repeatability could be obtained when the silica core was etched by HF solution. The surface-enhanced Raman scattering (SERS) enhancement factor (EF) of this 2D ordered gold nanobowl array could reach 1.27 × 10(7), which shows high SERS enhancing activity and can be used as a universal SERS substrate.
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China.
authors.forename: Yanying
authors.initials: Y
authors.lastname: Rao
authors.forename: Qin
authors.initials: Q
authors.lastname: Tao
authors.forename: Ming
authors.initials: M
authors.lastname: An
authors.forename: Chunhui
authors.initials: C
authors.lastname: Rong
authors.forename: Jian
authors.initials: J
authors.lastname: Dong
authors.forename: Yurong
authors.initials: Y
authors.lastname: Dai
authors.forename: Weiping
authors.initials: W
authors.lastname: Qian
mesh_terms: D003102:Colloids; D003362:Cost-Benefit Analysis; D006046:Gold / Q000737:chemistry*; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000191:economics / Q000295:instrumentation*; D010078:Oxazines / Q000737:chemistry; D013059:Spectrum Analysis, Raman; D013499:Surface Properties
chemical_list: D003102:Colloids; D010078:Oxazines; C008619:Nile Blue; D006046:Gold