Simple Fabrication of Two-Dimensional Self-Assemblies Consisting of Gold and Silver Nanoparticles at an Air/Toluene Interface and Their Surface-Enhanced Raman Scattering Activity
スポンサーリンク
概要
- 論文の詳細を見る
A methodology for fabricating two-dimensional assemblies consisting of octadecylamine-stabilized gold, silver, and mixed gold and silver nanoparticles at an air/toluene droplet interface is reported. After evaporation of the toluene solvent, the structure and optical properties of the resulting high-density nanoparticle assemblies were evaluated by transmission absorption spectroscopy and scanning electron microscopy (SEM). In addition, an investigation of the surface-enhanced Raman scattering (SERS) activity of para-mercaptoaniline molecules adsorbed on these assemblies revealed that by increasing the mixing ratio of silver nanoparticles to gold nanoparticles, SERS signals were significantly enhanced due to an adjustment in the excitation wavelength of surface plasmon resonance and an enhancement of the local electromagnetic field.
- 2012-06-25
著者
-
Sugawa Kosuke
College of Science and Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan
-
Tanoue Yoshimasa
College of Science and Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan
関連論文
- Facile Phase Transfer of Gold and Au-Core/Ag-Shell Nanoparticles from Aqueous to Toluene Solution Using Alkylamine Molecules and Their Assemblies on Solid Supports
- Tuning Optical Properties of Two-Dimensional Ordered Arrays of Silica/Gold and Silver Core/Shell Structured Nanoparticles in Near-Infrared Region (Special Issue : Solid State Devices and Materials (2))
- Simple Fabrication of Two-Dimensional Self-Assemblies Consisting of Gold and Silver Nanoparticles at an Air/Toluene Interface and Their Surface-Enhanced Raman Scattering Activity
- Development of Plasmon Resonance Sensing Based on Alkylthiol-Coated Triangular Silver Nanoplates on Glass Plates
- Development of Plasmon Resonance Sensing Based on Alkylthiol-Coated Triangular Silver Nanoplates on Glass Plates (Special Issue : Solid State Devices and Materials)
- Substituent Effects for Perylenedicarboxylic Anhydrides on the Performance of Dye-sensitized Solar Cells : The Simpler, the Better