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Surprisingly Long-Range Surface-Enhanced Raman Scattering (SERS) on Au–Ni Multisegmented Nanowires

Authors

  • Wei Wei Dr.,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • Shuzhou Li Dr.,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • Jill E. Millstone,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • Matthew J. Banholzer,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • Xiaodong Chen Dr.,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • Xiaoyang Xu,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • George C. Schatz Prof.,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • Chad A. Mirkin Prof.

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (+1) 847-567-5123
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  • C.A.M. acknowledges the Office of Naval Research (ONR) and the NSSEF program of the DoD for generous financial support. C.A.M is also grateful for a NIH Director’s Pioneer Award. S.L. and G.C.S were supported by AFOSR/DARPA grant FA9550-08-1-0221.

Abstract

Erstaunlich weitreichend ist die oberflächenverstärkte Raman-Streuung an einem Nickelnanodraht, der sich in 120 nm Entfernung von zwei Goldnanoscheiben befindet. Die Anregung der Oberflächenplasmonenresonanz (SPR) im Nanoscheibenpaar erhöht das elektromagnetische Feld nahe dem Nickelsegment (SEM, links), was zu einer erhöhten Raman-Intensität führt (rechts).

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