Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers

Detalhes bibliográficos
Autor(a) principal: Rebouta, L.
Data de Publicação: 2015
Outros Autores: Sousa, A., Andritschky, M., Cerqueira, F., Tavares, C. J., Santilli, P., Pischow, K.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/36988
Resumo: Coatings with a double absorbing layer based on AlSiN/AlSiON were deposited on stainless steel sub-strates by magnetron sputtering technique, with different Al:Si ratios. A tungsten layer was used asa back reflector and AlSiOyor SiOxthin films were used as antireflection top layers. Prior the structuredesign, several single layers were deposited on glass substrates by varying the reactive gases flows, whichallowed the stacking of a series of layers with different optical properties. Experimental transmittanceand reflectance were modelled for the assessment of the spectral optical constants, which were thenused to design a coating stack with optimized solar absorptance and thermal emittance. Optical prop-erties, microstructure, morphology, composition and chemical bonding were investigated by employingoptical spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffrac-tion and X-ray photoelectron spectroscopy. The samples were annealed in air at 400◦C and vacuum at580◦C with the purpose to evaluate their oxidation resistance and thermal stability, which was sub-sequently correlated with the Al:Si ratio. Optimum results were achieved for an Al:Si ratio of 2.3:1,whereas for significantly higher Si content resulted in detrimental performance. The solar absorbanceand thermal emittance for the optimized multilayer selective coatings is 93–94% and 7–10% (at 400◦C),respectively.
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spelling Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layersSolar selective absorberAlSiN/AlSiON/AlSiOyOptical constantsDielectric function modellingThermalStabilityAlSiN/AlSiON/AISiO(y)Dielectric function modellingThermal stabilityCiências Naturais::Ciências FísicasScience & TechnologyCoatings with a double absorbing layer based on AlSiN/AlSiON were deposited on stainless steel sub-strates by magnetron sputtering technique, with different Al:Si ratios. A tungsten layer was used asa back reflector and AlSiOyor SiOxthin films were used as antireflection top layers. Prior the structuredesign, several single layers were deposited on glass substrates by varying the reactive gases flows, whichallowed the stacking of a series of layers with different optical properties. Experimental transmittanceand reflectance were modelled for the assessment of the spectral optical constants, which were thenused to design a coating stack with optimized solar absorptance and thermal emittance. Optical prop-erties, microstructure, morphology, composition and chemical bonding were investigated by employingoptical spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffrac-tion and X-ray photoelectron spectroscopy. The samples were annealed in air at 400◦C and vacuum at580◦C with the purpose to evaluate their oxidation resistance and thermal stability, which was sub-sequently correlated with the Al:Si ratio. Optimum results were achieved for an Al:Si ratio of 2.3:1,whereas for significantly higher Si content resulted in detrimental performance. The solar absorbanceand thermal emittance for the optimized multilayer selective coatings is 93–94% and 7–10% (at 400◦C),respectively.The authors acknowledge the funding from the Finnish Funding Agency for Technology and Innovation, Tekes, and from FEDER funds through the "Programa Operacional Factores de Competitividade - COMPETE" and from national funds by FCT - "Fundacao para a Ciencia e a Tecnologia", under project no. PEst-C/FIS/UI0607/2011.ElsevierUniversidade do MinhoRebouta, L.Sousa, A.Andritschky, M.Cerqueira, F.Tavares, C. J.Santilli, P.Pischow, K.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/36988eng0169-433210.1016/j.apsusc.2015.07.193info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:57:21Zoai:repositorium.sdum.uminho.pt:1822/36988Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:47:00.472803Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
title Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
spellingShingle Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
Rebouta, L.
Solar selective absorber
AlSiN/AlSiON/AlSiOy
Optical constants
Dielectric function modellingThermal
Stability
AlSiN/AlSiON/AISiO(y)
Dielectric function modelling
Thermal stability
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
title_full Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
title_fullStr Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
title_full_unstemmed Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
title_sort Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
author Rebouta, L.
author_facet Rebouta, L.
Sousa, A.
Andritschky, M.
Cerqueira, F.
Tavares, C. J.
Santilli, P.
Pischow, K.
author_role author
author2 Sousa, A.
Andritschky, M.
Cerqueira, F.
Tavares, C. J.
Santilli, P.
Pischow, K.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Rebouta, L.
Sousa, A.
Andritschky, M.
Cerqueira, F.
Tavares, C. J.
Santilli, P.
Pischow, K.
dc.subject.por.fl_str_mv Solar selective absorber
AlSiN/AlSiON/AlSiOy
Optical constants
Dielectric function modellingThermal
Stability
AlSiN/AlSiON/AISiO(y)
Dielectric function modelling
Thermal stability
Ciências Naturais::Ciências Físicas
Science & Technology
topic Solar selective absorber
AlSiN/AlSiON/AlSiOy
Optical constants
Dielectric function modellingThermal
Stability
AlSiN/AlSiON/AISiO(y)
Dielectric function modelling
Thermal stability
Ciências Naturais::Ciências Físicas
Science & Technology
description Coatings with a double absorbing layer based on AlSiN/AlSiON were deposited on stainless steel sub-strates by magnetron sputtering technique, with different Al:Si ratios. A tungsten layer was used asa back reflector and AlSiOyor SiOxthin films were used as antireflection top layers. Prior the structuredesign, several single layers were deposited on glass substrates by varying the reactive gases flows, whichallowed the stacking of a series of layers with different optical properties. Experimental transmittanceand reflectance were modelled for the assessment of the spectral optical constants, which were thenused to design a coating stack with optimized solar absorptance and thermal emittance. Optical prop-erties, microstructure, morphology, composition and chemical bonding were investigated by employingoptical spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffrac-tion and X-ray photoelectron spectroscopy. The samples were annealed in air at 400◦C and vacuum at580◦C with the purpose to evaluate their oxidation resistance and thermal stability, which was sub-sequently correlated with the Al:Si ratio. Optimum results were achieved for an Al:Si ratio of 2.3:1,whereas for significantly higher Si content resulted in detrimental performance. The solar absorbanceand thermal emittance for the optimized multilayer selective coatings is 93–94% and 7–10% (at 400◦C),respectively.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/36988
url http://hdl.handle.net/1822/36988
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0169-4332
10.1016/j.apsusc.2015.07.193
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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