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Optical Properties of Multi-Component Antimony-Silver Nanoclusters Formed in Silica by Sequential Ion Implantation

Published online by Cambridge University Press:  21 February 2011

R.A. Zuhr ,
R.H. Magruder III  and
T.S. Anderson
R.A. Zuhr
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
R.H. Magruder III
Affiliation:
Vanderbilt University, Nashville, TN 37235
T.S. Anderson
Affiliation:
Vanderbilt University, Nashville, TN 37235
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Abstract

The linear and nonlinear optical properties of nanometer dimension metal colloids embedded in a dielectric depend explicitly on the electronic structure of the metal nanoclusters. The ability to control the electronic structure of the nanoclusters may make it possible to tailor the optical properties for enhanced performance. By sequential implantation of different metal ion species multi-component nanoclusters can be formed with significantly different optical properties than single element metal nanoclusters. We report the formation of multi-component Sb/Ag nanoclusters in silica by sequential implantation of Sb and Ag. Samples were implanted with relative ratios of Sb to Ag of 1:1 and 3:1. A second set of samples was made by single element implantations of Ag and Sb at the same energies and doses used to make the sequentially implanted samples. All samples were characterized using RBS and both linear and nonlinear optical measurements. The presence of both ions significantly modifies the optical properties of the composites compared to the single element nanocluster glass composites. In the sequentially implanted samples the optical density is lower, and the strong surface plasmon resonance absorption observed in the Ag implanted samples is not present. At the same time the nonlinear response of the these samples is larger than for the samples implanted with Sb alone, suggesting that the addition of Ag can increase the nonlinear response of the Sb particles formed. The results are consistent with the formation of multi-component Sb/Ag colloids.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 396: Symposium A – Ion-Solid Interactions for Materials Modification and Processing , 1995 , 391
Copyright
Copyright © Materials Research Society 1996

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