Solar Selective Coating for Thermal Applications

Solar Selective Coating for Thermal Applications

We present the results obtained using Cr2O3 as selective absorbing layer on aluminium film substrate. The thin films were deposited by electron beam evaporation using a multiple crucible e-gun able to deposit 4 materials in sequence without breaking the vacuum. Optical characterization of the multil...

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Veröffentlicht in:Key engineering materials 2019-07, Vol.813, p.316-321
Hauptverfasser: de Maio, Davide, Russo, Roberto, di Gennaro, Emiliano, Gioffrè, Mariano, D'Alessandro, Carmine, de Luca, Daniela, Musto, Marilena, Iodice, Mario, Rotondo, Giuseppe, Dalena, Davide
Format: Artikel
Sprache:eng
Schlagworte:
Absorptance
Absorptivity
Aluminum
Crucibles
Electron beams
Ellipsometry
Multilayers
Optical properties
Refractivity
Solar energy absorbers
Substrates
Thin films
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Beschreibung
Zusammenfassung:We present the results obtained using Cr2O3 as selective absorbing layer on aluminium film substrate. The thin films were deposited by electron beam evaporation using a multiple crucible e-gun able to deposit 4 materials in sequence without breaking the vacuum. Optical characterization of the multilayer films is based on ellipsometry and hemispherical reflectivity. The complex refractive index has been determinate and it has been used to design a selective solar absorber with high absorptance.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.813.316