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Surprisingly Long‐Range Surface‐Enhanced Raman Scattering (SERS) on Au–Ni Multisegmented Nanowires |
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| Authors: | Wei Wei Dr. Shuzhou Li Dr. Jill E. Millstone Matthew J. Banholzer Xiaodong Chen Dr. Xiaoyang Xu George C. Schatz Prof. Chad A. Mirkin Prof. |
| Affiliation: | Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208‐3113 (USA), Fax: (+1)?847‐567‐5123 |
| Abstract: | Very long range surface‐enhanced Raman scattering is observed from a nickel nanowire that is separated by 120 nm from a pair of gold nanodisks. The excitation of the surface‐plasmon resonance (SPR) from the gold nanodisk pair generates an enhanced electromagnetic field near the nickel segment (SEM, left), leading to Raman intensity greater than the nickel alone (right).  |
| Keywords: | nanowires on‐wire lithography surface chemistry surface plasmon resonance surface‐enhanced Raman scattering |