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Proceedings Paper

Oxidation Induced Aging Of Spectrally Selective Coatings Obtained By D.C. Magnetron Sputtering Of Cu and Cr
Author(s): P Docheva; D Popov; Z Uzunov
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Paper Abstract

Aging (under heating in air at 100°C ) of Cu and Cu - Cr coatings on glass substrates has been studied by measuring the spectral transmittance and reflectance in the wavelength range 0,4 - 25pm. The results show a fast oxidation of copper films. In the case of Cu-Cr double layer system an initial increase of the IR reflectance has been observed. After this stage the system shows a selectivity similar to that of a single as-received Cu films and very good stability to the oxidation. The prolonged heating (up to 600 h) in air at 100°C does not essentially change the IR reflectance of the Cu - Cr system. The increase of the IR reflectance of Cu - Cr coatings in the initial stage of heating and their further stability has been explained, supposing an oxidation of the Cr layer.

Paper Details

Date Published: 24 September 1986
PDF: 5 pages
Proc. SPIE 0653, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V, (24 September 1986); doi: 10.1117/12.938336
Show Author Affiliations
P Docheva, Technical University "A. Kanchev" (Bulgaria)
D Popov, Technical University "A. Kanchev" (Bulgaria)
Z Uzunov, Technical University "A. Kanchev" (Bulgaria)

Published in SPIE Proceedings Vol. 0653:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V
Claes-Goeran Granqvist; Carl M. Lampert; John J. Mason; Volker Wittwer, Editor(s)

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