Solar selective absorbing coatings based on AlSiN/AlSiON/AlSiOy layers
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
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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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 |
repository.mail.fl_str_mv |
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1799132226741338112 |