AVS 60th International Symposium and Exhibition | |
Nanometer-scale Science and Technology | Monday Sessions |
Session NS+BI+EM-MoM |
Session: | Nanophotonics and Plasmonics |
Presenter: | A. Nash, Virginia Commonwealth University |
Authors: | A. Nash, Virginia Commonwealth University D. Ye, Virginia Commonwealth University |
Correspondent: | Click to Email |
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.