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Optical extinction resonance of Au and Ag clusters formed by ion irradiation in SiO2 and Al2O3

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Abstract.

Three methods based on ion-beam irradiation were used to fabricate Ag and Au colloids in silica and alumina. Their surface-plasmon resonance in the visible was characterised by transmittance measurements and interpreted on the basis of transmission electron microscope observations. Despite their bimodal size distribution, particles formed by ion-beam mixing of sandwich layers exhibit much narrower resonances than those obtained by ion implantation. This unusual effect of an inhomogeneity in cluster size is ascribed to the spatial organisation of these clusters. Irradiation of supersaturated solid solutions at much lower ion fluences produces colloids with more uniform size and spatial distributions, and equally strong resonances.

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Authors and Affiliations

  1. CSNSM, IN2P3-CNRS, Batiment 108, 91 405 Orsay Campus, France, , , , , , FR

    J.C. Pivin

  2. Central Laboratory for Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, 1784 Sofia, Bulgaria, , , , , , BG

    M. Sendova-Vassileva, M. Nikolaeva & D. Dimova-Malinovska

  3. Departimento di Ingegneria Meccanica, Settore Materiali, Universita di Padova, via Marzolo 9, 35 131 Padova, Italy, , , , , , IT

    A. Martucci

Authors
  1. J.C. Pivin
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  2. M. Sendova-Vassileva
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  3. M. Nikolaeva
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  4. D. Dimova-Malinovska
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  5. A. Martucci
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Received: 17 March 2001 / Accepted: 31 July 2001 / Published online: 11 February 2002

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Pivin, J., Sendova-Vassileva, M., Nikolaeva, M. et al. Optical extinction resonance of Au and Ag clusters formed by ion irradiation in SiO2 and Al2O3. Appl Phys A 75, 401–410 (2002). https://doi.org/10.1007/s003390100990

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  • DOI: https://doi.org/10.1007/s003390100990

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