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Bruzzone S, Malvaldi M, Arrighini GP, et al. Near-field and far-field scattering by bimetallic nanoshell systems. J Phys Chem B. 2006;110(23):11050-4doi: 10.1021/jp061668o.
Bruzzone, S., Malvaldi, M., Arrighini, G. P., & Guidotti, C. (2006). Near-field and far-field scattering by bimetallic nanoshell systems. The journal of physical chemistry. B, 110(23), 11050-4. https://doi.org/10.1021/jp061668o
Bruzzone, S, et al. "Near-field and far-field scattering by bimetallic nanoshell systems." The journal of physical chemistry. B vol. 110,23 (2006): 11050-4. doi: https://doi.org/10.1021/jp061668o
Bruzzone S, Malvaldi M, Arrighini GP, Guidotti C. Near-field and far-field scattering by bimetallic nanoshell systems. J Phys Chem B. 2006 Jun 15;110(23):11050-4. doi: 10.1021/jp061668o. PMID: 16771364.
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J Phys Chem B. 2006 Jun 15;110(23):11050-4. doi: 10.1021/jp061668o.

Near-field and far-field scattering by bimetallic nanoshell systems.

The journal of physical chemistry. B

S Bruzzone, M Malvaldi, G P Arrighini, C Guidotti

Affiliations

  1. Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Pisa, Via Risorgimento 35, 56100 Pisa, Italy. [email protected]

PMID: 16771364 DOI: 10.1021/jp061668o

Abstract

We have studied theoretically the far- and near-field scattering response of bimetallic Ag/Au core-shell and alloy nanoparticles. Particular emphasis is put on the near-field study, which is known to play a fundamental role in surface enhanced spectroscopies. The comparison between the scattering spectra of core-shell and alloy particles shows that for particles with a Au/Ag volume ratio greater than 2, the structural difference does not imply any significant difference in the optical response. For such particles, while the retardation effects are not negligible, the scattering at the interface between the two metals in the core-shell case does not seem to modify the scattering behavior. The scattering at the interface is conversely not negligible for particles with a lower Au/Ag ratio, where the particle inner structure seems to be important.

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