Superhydrophobic transparent films from silica powder: Comparison of fabrication methods

Handle URI:
http://hdl.handle.net/10754/599802
Title:
Superhydrophobic transparent films from silica powder: Comparison of fabrication methods
Authors:
Liu, Li-Der; Lin, Chao-Sung; Tikekar, Mukul; Chen, Ping-Hei
Abstract:
The lotus leaf is known for its self-clean, superhydrophobic surface, which displays a hierarchical structure covered with a thin wax-like material. In this study, three fabrication techniques, using silicon dioxide particles to create surface roughness followed by a surface modification with a film of polydimethylsiloxane, were applied on a transparent glass substrate. The fabrication techniques differed mainly on the deposition of silicon dioxide particles, which included organic, inorganic, and physical methods. Each technique was used to coat three samples of varying particle load. The surface of each sample was evaluated with contact angle goniometer and optical spectrometer. Results confirmed the inverse relationships between contact angle and optical transmissivity independent of fabrication techniques. Microstructural morphologies also suggested the advantage of physical deposition over chemical methods. In summary, the direct sintering method proved outstanding for its contact angle vs transmissivity efficiency, and capable of generating a contact angle as high as 174°. © 2011 Elsevier B.V. All rights reserved.
Citation:
Liu L-D, Lin C-S, Tikekar M, Chen P-H (2011) Superhydrophobic transparent films from silica powder: Comparison of fabrication methods. Thin Solid Films 519: 6224–6229. Available: http://dx.doi.org/10.1016/j.tsf.2011.03.129.
Publisher:
Elsevier BV
Journal:
Thin Solid Films
KAUST Grant Number:
KUK-C1-014-12
Issue Date:
Jul-2011
DOI:
10.1016/j.tsf.2011.03.129
Type:
Article
ISSN:
0040-6090
Sponsors:
This study was funded by the King Abdullah University of Science and Technology Global Research Partnership Award, B-04 sub plan, Advancing the Development of Solar Building Technology for the Future: KUK-C1-014-12. Further thanks to Geosciences Department, National Taiwan University for extensive uses on the FEI Quanta 200 FEG SEM; Chemical Engineering Department, National Taiwan University for extensive uses on FTA125 contact angle goniometer; and Nanomaterial and Devices Lab, and Material Science and Engineering Department, National Taiwan University for extensive uses on Ocean Optics USB2000 Fibre Optic Spectrometer.
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Full metadata record

DC FieldValue Language
dc.contributor.authorLiu, Li-Deren
dc.contributor.authorLin, Chao-Sungen
dc.contributor.authorTikekar, Mukulen
dc.contributor.authorChen, Ping-Heien
dc.date.accessioned2016-02-28T06:10:09Zen
dc.date.available2016-02-28T06:10:09Zen
dc.date.issued2011-07en
dc.identifier.citationLiu L-D, Lin C-S, Tikekar M, Chen P-H (2011) Superhydrophobic transparent films from silica powder: Comparison of fabrication methods. Thin Solid Films 519: 6224–6229. Available: http://dx.doi.org/10.1016/j.tsf.2011.03.129.en
dc.identifier.issn0040-6090en
dc.identifier.doi10.1016/j.tsf.2011.03.129en
dc.identifier.urihttp://hdl.handle.net/10754/599802en
dc.description.abstractThe lotus leaf is known for its self-clean, superhydrophobic surface, which displays a hierarchical structure covered with a thin wax-like material. In this study, three fabrication techniques, using silicon dioxide particles to create surface roughness followed by a surface modification with a film of polydimethylsiloxane, were applied on a transparent glass substrate. The fabrication techniques differed mainly on the deposition of silicon dioxide particles, which included organic, inorganic, and physical methods. Each technique was used to coat three samples of varying particle load. The surface of each sample was evaluated with contact angle goniometer and optical spectrometer. Results confirmed the inverse relationships between contact angle and optical transmissivity independent of fabrication techniques. Microstructural morphologies also suggested the advantage of physical deposition over chemical methods. In summary, the direct sintering method proved outstanding for its contact angle vs transmissivity efficiency, and capable of generating a contact angle as high as 174°. © 2011 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipThis study was funded by the King Abdullah University of Science and Technology Global Research Partnership Award, B-04 sub plan, Advancing the Development of Solar Building Technology for the Future: KUK-C1-014-12. Further thanks to Geosciences Department, National Taiwan University for extensive uses on the FEI Quanta 200 FEG SEM; Chemical Engineering Department, National Taiwan University for extensive uses on FTA125 contact angle goniometer; and Nanomaterial and Devices Lab, and Material Science and Engineering Department, National Taiwan University for extensive uses on Ocean Optics USB2000 Fibre Optic Spectrometer.en
dc.publisherElsevier BVen
dc.subjectPolydimethylsiloxaneen
dc.subjectSelf-cleaning surfacesen
dc.subjectSilicaen
dc.subjectSol-gel depositionen
dc.subjectSuperhydrophobicityen
dc.subjectTransmissivityen
dc.titleSuperhydrophobic transparent films from silica powder: Comparison of fabrication methodsen
dc.typeArticleen
dc.identifier.journalThin Solid Filmsen
dc.contributor.institutionNational Taiwan University, Taipei, Taiwanen
dc.contributor.institutionIndian Institute of Technology, Bombay, Mumbai, Indiaen
kaust.grant.numberKUK-C1-014-12en
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