24 September 1986 Oxidation Induced Aging Of Spectrally Selective Coatings Obtained By D.C. Magnetron Sputtering Of Cu and Cr
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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.
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P Docheva, P Docheva, D Popov, D Popov, Z Uzunov, Z Uzunov, } "Oxidation Induced Aging Of Spectrally Selective Coatings Obtained By D.C. Magnetron Sputtering Of Cu and Cr", Proc. SPIE 0653, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V, (24 September 1986); doi: 10.1117/12.938336; https://doi.org/10.1117/12.938336
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