title: Controlled growth of concave gold nanobars with high surface-enhanced Raman-scattering and excellent catalytic activities.
abstract: Highly monodispersed concave gold nanobars with 24 high-index {730} facets are synthesized through a seed-mediated growth in aqueous solution. The transformation from the truncated rectangular nanobars to rectangular nanobars, then transitional products, and final concave rectangular nanobars is observed with the fine control of silver nitrate in the growth solution, and their corresponding transverse surface plasmons can be well tuned, too. These concave gold nanobars exhibit good optical property, excellent catalytic activity, and high surface-enhanced Raman-scattering (SERS) response.
authors.affiliation: Single-Molecule Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Guangdong 518055, PR China. zhangcy@siat.ac.cn
authors.forename: Lin-fei
authors.initials: LF
authors.lastname: Zhang
authors.forename: Chun-yang
authors.initials: CY
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D043942:Nanotubes / Q000737:chemistry*; D010316:Particle Size; D013059:Spectrum Analysis, Raman; D020349:Surface Plasmon Resonance
chemical_list: D006046:Gold