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Open AccessArticle

Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating Foil Substrates

1
Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, Interaktion 1, 33619 Bielefeld, Germany
2
Faculty of Physics, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
3
InovisCoat GmbH, Rheinparkallee 3, 40789 Monheim am Rhein, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Xinyu Zhang and Yeau-Ren Jeng
Coatings 2021, 11(2), 249; https://doi.org/10.3390/coatings11020249
Received: 16 November 2020 / Revised: 15 February 2021 / Accepted: 17 February 2021 / Published: 19 February 2021
Electrospinning can be used to prepare nanofibers from various polymers and polymer blends. The adhesion of nanofibers to the substrates on which they are electrospun varies greatly with the substrate material and structure. In some cases, good adhesion is desired to produce sandwich structures by electrospinning one material directly onto another. This is the case, e.g., with dye-sensitized solar cells (DSSCs). While both pure foil DSSCs and pure electrospun DSSCs have been examined, a combination of both technologies can be used to combine their advantages, e.g., the lateral strength of foils with the large surface-to-volume ratio of electrospun nanofibers. Here, we investigate the morphology and adhesion of electrospun nanofibers on different foil substrates containing materials commonly used in DSSCs, such as graphite, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) or TiO2. The results show that the foil material strongly influences the adhesion, while a plasma pretreatment of the foils showed no significant effect. Moreover, it is well known that conductive substrates can alter the morphology of nanofiber mats, both at microscopic and macroscopic levels. However, these effects could not be observed in the current study. View Full-Text
Keywords: electrospinning; polyacrylonitrile (PAN); nanofibers; conductive foils; adhesion; dye-sensitized solar cells (DSSCs); fiber orientation electrospinning; polyacrylonitrile (PAN); nanofibers; conductive foils; adhesion; dye-sensitized solar cells (DSSCs); fiber orientation
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MDPI and ACS Style

Hellert, C.; Wortmann, M.; Frese, N.; Grötsch, G.; Cornelißen, C.; Ehrmann, A. Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating Foil Substrates. Coatings 2021, 11, 249. https://doi.org/10.3390/coatings11020249

AMA Style

Hellert C, Wortmann M, Frese N, Grötsch G, Cornelißen C, Ehrmann A. Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating Foil Substrates. Coatings. 2021; 11(2):249. https://doi.org/10.3390/coatings11020249

Chicago/Turabian Style

Hellert, Christian; Wortmann, Martin; Frese, Natalie; Grötsch, Georg; Cornelißen, Carsten; Ehrmann, Andrea. 2021. "Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating Foil Substrates" Coatings 11, no. 2: 249. https://doi.org/10.3390/coatings11020249

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