Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase

  • Thin polytetrafluoroethylene (PTFE) films are produced by deposition from a gas phase by two methods: electron-enhanced vacuum deposition (EVD) and EVD + low-temperature plasma (LTP). Structure, morphology, and composition of the films are studied by IR spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. They are close to the structure of bulk PTFE. The roughness of the films’ surface is changed with gas pressure and LTP power variations. Films are transparent from UV to near-infrared regions. Refractive and extinction indices and their anisotropy are measured by spectral ellipsometry. They are tuned by variations of deposition conditions. Hardness and Young modulus of the films are increased if EVD + low power LTP is used for film deposition. Use of EVD + LTP also increases thermal stability of the films. Contact angle of the films corresponds to the bulk PTFE. The PTFE molecules oriented are preferentially in perpendicular direction to the substrate surface.
Metadaten
URN:urn:nbn:de:kobv:526-opus4-17587
Publisher DOI:https://doi.org/10.1002/mame.202200617
Author:Kostyantyn GrytsenkoORCiD, Yurii KolomzarovORCiD, Peter LytvynORCiD, Olga Kondratenko, Mykola Sopinskyy, Iryna LebedyevaORCiD, Agata NiemczykORCiD, Jolanta BaranowskaORCiD, Dariusz Moszyński, Claus VillringerORCiD, Sigurd SchraderORCiD
Parent Title (English):Macromolecular Materials and Engineering
Document Type:Article
Language:English
Year of Publication:2023
Volume:308
Issue:6
Article Number:2200617
Publisher:Wiley
Publishing Institution:Technische Hochschule Wildau
Tag:deposition in vacuum; multiphase structure formation; optical property; plasma; polytetrafluoroethylene thin film
Source:Grytsenko, K., Kolomzarov, Y., Lytvyn, P., Kondratenko, O., Sopinskyy, M., Lebedyeva, I., Niemczyk, A., Baranovska, J., Moszyński, D., Villringer, C., Schrader, S., Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase. Macromol. Mater. Eng. 2023, 308, 2200617. https://doi.org/10.1002/mame.202200617
Faculties an central facilities:Fachbereich Ingenieur- und Naturwissenschaften
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 621 Angewandte Physik
Funding:Projekt DEAL
Publikationsfonds der TH Wildau
Licence (German): Creative Commons - CC BY - Namensnennung 4.0 International
Release Date:2023/07/03
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