Spray coating vs. immersion for self-assembly of gemini perfluorinated phosphonic acids on indium tin oxide

dc.contributor.authorAndreatta, Gaëlle Anne Léonie
dc.contributor.authorBlondiaux, Nicolas
dc.contributor.authorGay, Julien
dc.contributor.authorUnterhofer, Samuel
dc.contributor.authorLachowicz, Agata
dc.contributor.authorFaes, Antonin
dc.date.accessioned2022-03-15T10:01:37Z
dc.date.available2022-03-15T10:01:37Z
dc.date.issued2021-08-31
dc.description.abstractSelf-assembled monolayers (SAMs) are widely used to engineer the surface properties of metals and metal oxide layers. This article reports the fabrication of gemini perfluorinated phosphonic acids SAMs on indium tin oxide (ITO). The self-assembled monolayers are to be used for patterning nickel lines by electroplating on ITO in order to obtain low-cost conductor grids on heterojunction solar cells. The aim is to develop large-scale, low-cost processes that will both reduce production times and produce strong, covalently bonded monolayers of phosphonic acids on metal oxide surfaces along with uniform coverage. The gemini perfluorinated phosphonic acid provides extremely high hydrophobicity at the surface of ITO with a static contact angle of water above 115° and a remarkably low hysteresis of approximately 15° between advancing and receding contact angles. Well-known octadecylphosphonic acid is used as a reference material. Two deposition methods, by immersion and by spray-coating, are compared for the self-assembly of the molecules. The effect of the solvents used during the immersion, spray-coating, and rinsing steps are investigated. The surface properties are characterized by atomic force microscopy, contact angle measurements, and attenuated total reflectance Fourier-transform infrared spectroscopy.en_US
dc.description.sponsorshipANR SNSFen_US
dc.identifier.citationThin Solid Films, Vol 732, pp. 138783en_US
dc.identifier.doi10.1016/j.tsf.2021.138783
dc.identifier.issn00406090
dc.identifier.urihttps://hdl.handle.net/20.500.12839/1009
dc.language.isoenen_US
dc.subjectIndium Tin Oxideen_US
dc.subjectPerfluorinated self-assembled monolayersen_US
dc.subjectSpray-coatingen_US
dc.subjectPhosphonic Acidsen_US
dc.titleSpray coating vs. immersion for self-assembly of gemini perfluorinated phosphonic acids on indium tin oxideen_US
dc.typeJournal Articleen_US
dc.type.csemdivisionsBU-Ten_US
dc.type.csemresearchareasFunctional Surfacesen_US
dc.type.csemresearchareasPV & Solar Buildingsen_US
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