title: Surfactantless synthesis of multiple shapes of gold nanostructures and their shape-dependent SERS spectroscopy.
abstract: A useful method for the synthesis of various gold nanostructures is presented. The results demonstrated that flowerlike nanoparticle arrays, nanowire networks, nanosheets, and nanoflowers were obtained on the solid substrate under different experimental conditions. In addition, surface-enhanced Raman scattering (SERS) spectra of 4-aminothiophenol (4-ATP) on the as-prepared gold nanostructures of various shapes were measured, and their shape-dependent properties were evaluated. The intensity of the SERS signal was the smallest for the gold nanosheets, and the flowerlike nanoparticle arrays gave the strongest SERS signals.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, People's Republic of China.
authors.forename: Tie
authors.initials: T
authors.lastname: Wang
authors.forename: Xiaoge
authors.initials: X
authors.lastname: Hu
authors.forename: Shaojun
authors.initials: S
authors.lastname: Dong