AVS 60th International Symposium and Exhibition
    Nanometer-scale Science and Technology Monday Sessions
       Session NS+BI+EM-MoM

Paper NS+BI+EM-MoM5
Single-Molecule Surface Enhanced Raman Scattering using Silver Coated Nickel Nanorod Arrays

Monday, October 28, 2013, 9:40 am, Room 203 B

Session: Nanophotonics and Plasmonics
Presenter: A. Nash, Virginia Commonwealth University
Authors: A. Nash, Virginia Commonwealth University
D. Ye, Virginia Commonwealth University
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Nickel nanorods arrays were prepared on silicon (100) substrates using the glancing angle deposition (GLAD) technique. Subsequently, the nanorods were coated with 30 nm thick silver on the tip of the nanorods without breaking vacuum. The surface enhanced Raman scattering (SERS) at near single molecule levels was verified in a Horiba confocal Raman microscope using low concentration Rhodamine 6G. At the concentration 3 × 10-14 M, blinking of the Raman peaks were observed. We found that the Raman signal intensities can be related to the concentration of the analytes by the Langmuir-Freundlich adsorption isotherm.