Hydrophobic and spectrally broadband antireflective methyl-silylated silica coatings with high performance stability for concentrated solar applications

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dc.contributor.authorAgustín-Sáenz, Cecilia
dc.contributor.authorMachado, Maider
dc.contributor.authorZubillaga, Oihana
dc.contributor.authorTercjak, Agnieszka
dc.contributor.institutionTecnalia Research & Innovation
dc.contributor.institutionVALORIZACIÓN DE RESIDUOS
dc.contributor.institutionSISTEMAS FOTOVOLTAICOS
dc.date.issued2019-09-15
dc.descriptionPublisher Copyright: © 2019
dc.description.abstractAn efficient and environment-friendly process, consisting of acid-catalyzed sol-gel process combined with evaporation induced self-assembly, was conducted to build antireflective (AR) layer stacks for concentrated solar applications. Considering the external factors that may alter the optical properties of the system when operating outdoors, such as soiling, harsh climate conditions and alkali ions diffusion from glass, several stack configurations were proposed. Particularly, the effect of a methyl-silylating post-treatment, the presence of the inner layer and the optimization of sintering temperature have been devised in order to minimize soiling adherence and alkali diffusion from the glass substrate and to assure the required robustness to comply with the durability requirements. The assessment consisted of (i) an analysis of the optical transmittance, reflectance and refractive index and (ii) hydrophobicity and effect of water absorption on the external porous coatings in relation to the results of accelerated aging tests following photovoltaics standards. The main goal was to achieve the most rational design, based on a proper trade-off between cost efficiency, processability, optical properties and reliability during real life operation.en
dc.description.statusPeer reviewed
dc.format.extent1
dc.format.extent2979848
dc.identifier.citationAgustín-Sáenz , C , Machado , M , Zubillaga , O & Tercjak , A 2019 , ' Hydrophobic and spectrally broadband antireflective methyl-silylated silica coatings with high performance stability for concentrated solar applications ' , Solar Energy Materials and Solar Cells , vol. 200 , 109962 , pp. 109962 . https://doi.org/10.1016/j.solmat.2019.109962
dc.identifier.doi10.1016/j.solmat.2019.109962
dc.identifier.issn1879-0248
dc.identifier.otherresearchoutputwizard: 11556/949
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85066131534&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofSolar Energy Materials and Solar Cells
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsAntireflective
dc.subject.keywordsBroadband
dc.subject.keywordsSol-gel
dc.subject.keywordsConcentrating photovoltaics
dc.subject.keywordsHMDS
dc.subject.keywordsSoiling
dc.subject.keywordsAntireflective
dc.subject.keywordsBroadband
dc.subject.keywordsSol-gel
dc.subject.keywordsConcentrating photovoltaics
dc.subject.keywordsHMDS
dc.subject.keywordsSoiling
dc.subject.keywordsElectronic, Optical and Magnetic Materials
dc.subject.keywordsRenewable Energy, Sustainability and the Environment
dc.subject.keywordsSurfaces, Coatings and Films
dc.subject.keywordsSDG 7 - Affordable and Clean Energy
dc.subject.keywordsFunding Info
dc.subject.keywordsThis work was supported by the Basque Government throughEMAITEK 2017 program as well as the ELKARTEK projectsFRONTIERS-2 (contract number KK2016-00093) and FRONTIERS-3(contract number KK2017-00096).The authors thank ICV-CSIC, Yolanda Castro and Alicia Durán fortheir support with ellipsometry and EEP measurements.The authors thank Miguel Pérez-Aradros for the help with graphicalabstract illustration.
dc.subject.keywordsThis work was supported by the Basque Government throughEMAITEK 2017 program as well as the ELKARTEK projectsFRONTIERS-2 (contract number KK2016-00093) and FRONTIERS-3(contract number KK2017-00096).The authors thank ICV-CSIC, Yolanda Castro and Alicia Durán fortheir support with ellipsometry and EEP measurements.The authors thank Miguel Pérez-Aradros for the help with graphicalabstract illustration.
dc.titleHydrophobic and spectrally broadband antireflective methyl-silylated silica coatings with high performance stability for concentrated solar applicationsen
dc.typejournal article
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