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Aerosol-based deposition of broadband antireflective silica coating with closed mesoporous structure
Absolicon Solar Collector, Sweden; Umeå University, Sweden.ORCID iD: 0000-0003-0129-9350
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0002-4746-6559
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0003-2160-6979
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.
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2023 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 250, p. 112078-112078, article id 112078Article in journal (Refereed) Published
Abstract [en]

Solar energy will be a crucial part of the sustainable, fossil free energy production of the future. A majority of this will be produced by solar collectors and photovoltaics. Important for the efficient utilization of the incident solar energy for both technologies are a cover glass with antireflective coatings giving it a high solar transmittance. In the current paper we describe the development of antireflective mesoporous silica coatings on low-iron float glass using the aerosol-based nFOG™ deposition technique. The coatings exhibit a hexagonal and closed pore structure, high smoothness, superhydrophilic properties (contact angle <5°) and consistent thicknesses of approximately 110 nm. This is in line with optimal thickness determined from simulations of the antireflective behavior. Low-iron float glass coated on both sides show a highly reproducible solar weighted transmittance of 95% in the wavelength range 300–2500 nm and an antireflective effect increasing with incident angle. The smoothness, closed pores and low contact angle indicate a high cleanability, which in combination with the high transmittance render a competitive broadband antireflective coating well adapted for solar glass applications.

Place, publisher, year, edition, pages
2023. Vol. 250, p. 112078-112078, article id 112078
Keywords [en]
Antireflective coating, Aerosol-based deposition, nFOG™, Hexagonal mesoporous silica, Solar collector, Solar glass
National Category
Materials Engineering Manufacturing, Surface and Joining Technology Materials Chemistry Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:ri:diva-61135DOI: 10.1016/j.solmat.2022.112078OAI: oai:DiVA.org:ri-61135DiVA, id: diva2:1709379
Projects
Development of Functional Coatings on Cover Glass for Produktion of more Efficient Solar CollectorsTransparent multifunctional thin films on low–iron float glass for solar energy applications
Funder
Vinnova, 2018-02588Swedish Energy Agency, 52487-1Swedish Energy Agency, 45419-1Swedish Research Council, 2017–59504862
Note

Funding: Vinnova 2018-02588. Energimyndigheten 45419-1. Vetenskapsrådet 2017-59504862

Available from: 2022-11-08 Created: 2022-11-08 Last updated: 2024-03-25Bibliographically approved

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Järn, MikaelKarlsson, StefanSundin, Mikael

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