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Proceedings Paper

Optical Properties Of A Silver Layer In ZnO/Ag/ZnO and TiO2/Ag/TiO2 Systems
Author(s): Abraham Belkind; Valery A. Koss; Kazem Memarzadeh; John A. Woollam
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Paper Abstract

Effective dielectric constants of the silver layers in three ZnO/Ag/ZnO and two Ti02/Ag/Ti02 coatings are determined using spectroscopic ellipsometry assuming a three-layer model for the coatings. Drude analysis of the data shows that the effective dielectric constants of silver in the red and near infrared regions are close to that of bulk silver, and both, bulk plasmon energy and core polarizability, depend on the layer thickness. Three peaks, at 3.8-3.9, 3.5-3.7 and 2.9-3.3 eV, are observed in the spectra of the imaginary part of the effective dielectric constant. Generation of surface plasmons, indicated by these peaks, is considered as a consequence of surface roughness which is not included in the original three-layer model. Analysis of data on transmittance and reflectance, measured at incidence angles of 45° and 60° , confirms surface plasmon generation.

Paper Details

Date Published: 6 March 1989
PDF: 10 pages
Proc. SPIE 1016, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VII, (6 March 1989); doi: 10.1117/12.949933
Show Author Affiliations
Abraham Belkind, The BOC Group, Inc. (United States)
Valery A. Koss, The BOC Group, Inc. (United States)
Kazem Memarzadeh, University of Nebraska (United States)
John A. Woollam, University of Nebraska (United States)


Published in SPIE Proceedings Vol. 1016:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VII
Claes-Goeran Granqvist; Carl M. Lampert, Editor(s)

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