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Optical properties of nonspherical silver nanoparticles embedded in a plasma polymer thin film matrix

Published online by Cambridge University Press:  10 February 2011

A. Heilmann ,
M. Quinten  and
A. Kiesow
A. Heilmann
Affiliation:
TU Chemnitz, Institute of Physics, D-09107 Chemnitz, Germany Present adress: Fraunhofer Institute of Mechanics of Materials, Branch Laboratory for Microstructure of Materials and Systems, Heideallee 19, D-06120 Halle, Germany
M. Quinten
Affiliation:
RWTH Aachen, I. Physikalisches Institut, D-52056 Aachen, Germany
A. Kiesow
Affiliation:
TU Chemnitz, Institute of Physics, D-09107 Chemnitz, Germany
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Abstract

Silver nanoparticles which are embedded in a plasma polymer matrix were obtained by transmission electron microscopy. Their sizes and shapes were analyzed with optical image processing. As most of the particles appeared as elongated rotational ellipsoids, the major and minor half axes were determined for each particle. The model of Gans in the Rayleigh approximation was used to calculate the extinction spectra for each investigated particle using the data from the image processing. Various spectra for 1049 silver particles were added to get a total extinction spectrum which was in good agreement with the experimental spectrum.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 501: Symposium FF – Surface Controlled Nanoscale Materials for High-Added… , 1997 , 73
Copyright
Copyright © Materials Research Society 1998

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References

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