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Superhydrophobic-Oleophobic Visible-Transparent Antireflective Nanostructured Anodic HfO2 Multifunctional Coatings for Potential Solar Panel Applications

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU142109" target="_blank" >RIV/00216305:26620/21:PU142109 - isvavai.cz</a>

  • Result on the web

    <a href="https://pubs.acs.org/doi/10.1021/acsanm.0c03202" target="_blank" >https://pubs.acs.org/doi/10.1021/acsanm.0c03202</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1021/acsanm.0c03202" target="_blank" >10.1021/acsanm.0c03202</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Superhydrophobic-Oleophobic Visible-Transparent Antireflective Nanostructured Anodic HfO2 Multifunctional Coatings for Potential Solar Panel Applications

  • Original language description

    The fabrication of superhydrophobic-oleophobic HfO2 coatings presents a challenge. Here, we synthesize via the self-organized anodizing of aluminum-on-hafnium layers sputter-deposited onto SiO2 and glass substrate arrays of highly aligned HfO2 nanostructures of dissimilar shapes, sizes, spacings, and population densities termed as nanorods, nanopillars, nanohoodoos, and nanopillars-in-domains, which were then modified with various self-assembled monolayers. The treatment in fluoroalkyl-trimethoxysilane (FAS-17) appeared to be the most effective in making the hafnium-oxide nanoarrays superhydrophobic, with water contact angles of 153 degrees (nanopillars), 155 degrees (nanorods), 160 degrees (nanohoodoos), and 174 degrees (nanopillars-in-domains), the latter revealing the smallest roll-off angle of <1 degrees. The FAS-17-modified HfO2 nanorods and pillars-in-domains demonstrated the best oleophobic properties with a contact angle for ethylene glycol of 140 degrees and for rapeseed oil of 121 degrees. In addition, the HfO2 nanorod films were highly transparent and antireflective in the visible spectral range and substantially less transparent and increasingly reflective in the near infrared. An outstanding combination of robust superhydrophobic-oleophobic properties with the specific optical behavior of the HfO2 nanoarrays makes them attractive for application as self-cleaning visible-transparent heat-repelling dielectric coatings for solar cell coverglass and concentrator photovoltaics.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    21001 - Nano-materials (production and properties)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    ACS Applied Nano Materials

  • ISSN

    2574-0970

  • e-ISSN

  • Volume of the periodical

    4

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    12

  • Pages from-to

    1754-1765

  • UT code for WoS article

    000624546800083

  • EID of the result in the Scopus database

    2-s2.0-85100643300