<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>1378</id>
    <completedYear>2021</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>66</pageFirst>
    <pageLast>80</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>4</volume>
    <type>article</type>
    <publisherName>MDPI</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fluoropolymer Film Formation by Electron Activated Vacuum Deposition</title>
    <abstract language="eng">Polytetrafluoroethylene (PTFE), polyhexafluoropropylene (PHFP) and polychlorotrifluoroethylene (PCTFE) were heated to their decomposition temperature in a high vacuum. The emitted fragments passed an electron cloud, condensed on a substrate and formed fluoropolymer film. Growth rate of PTFE and PHFP films increased up to a factor five in the presence of the electron cloud. Mass spectrometry revealed changes in the mass spectra of fragments generated by thermal decomposition only and formed under electron activation. The observed changes were different for each fluoropolymer. Infrared spectroscopy (IRS) showed that the structure of the films was close to the structure of the bulk polymers. Atomic force microscopy (AFM) has revealed different morphologies of PTFE, PHFP and PCTFE films, suggesting a Volmer–Weber growth mechanism for PTFE and PHFP but a Frank-van der Merwe one for PCTFE. All films were smooth at nanoscale and transparent from ultraviolet to near-infrared region. Additional radio frequency (RF) plasma ignited in the emitted fragments at a low pressure increased mechanical characteristics of the films without losing their optical transparency and smoothness.</abstract>
    <parentTitle language="eng">Surfaces</parentTitle>
    <identifier type="issn">2571-9637</identifier>
    <identifier type="urn">urn:nbn:de:kobv:526-opus4-13786</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="SourceTitle">Grytsenko, K.; Ksianzou, V.; Kolomzarov, Y.; Lytvyn, P.; Dietzel, B.; Schrader, S. Fluoropolymer Film Formation by Electron Activated Vacuum Deposition. Surfaces 2021, 4, 66-80. https://doi.org/10.3390/surfaces4010009</enrichment>
    <enrichment key="DOI_VoR">https://doi.org/10.3390/surfaces4010009</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Kostyantyn Grytsenko</author>
    <author>Viachaslau Ksianzou</author>
    <author>Yurii Kolomzarov</author>
    <author>Peter Lytvyn</author>
    <author>Birgit Dietzel</author>
    <author>Sigurd Schrader</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>fluoropolymer thin film</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>vacuum deposition</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>polymerization</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>plasma</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>surface</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">Fachbereich Ingenieur- und Naturwissenschaften</collection>
    <collection role="open_access" number="">open_access</collection>
    <collection role="green_open_access" number="1">Gold Open Access</collection>
    <thesisPublisher>Technische Hochschule Wildau</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-th-wildau/files/1378/surfaces-04-00009-v2.pdf</file>
  </doc>
  <doc>
    <id>1758</id>
    <completedYear>2023</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>308</volume>
    <type>article</type>
    <publisherName>Wiley</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase</title>
    <abstract language="eng">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.</abstract>
    <parentTitle language="eng">Macromolecular Materials and Engineering</parentTitle>
    <identifier type="urn">urn:nbn:de:kobv:526-opus4-17587</identifier>
    <enrichment key="opus.import.data">@articlehttps://doi.org/10.1002/mame.202200617, author = Grytsenko, Kostyantyn and Kolomzarov, Yurii and Lytvyn, Peter and Kondratenko, Olga and Sopinskyy, Mykola and Lebedyeva, Iryna and Niemczyk, Agata and Baranovska, Jolanta and Moszyński, Dariusz and Villringer, Claus and Schrader, Sigurd, title = Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase, journal = Macromolecular Materials and Engineering, volume = 308, number = 6, pages = 2200617, keywords = deposition in vacuum, multiphase structure formation, optical properties, plasma, polytetrafluoroethylene thin films, doi = https://doi.org/10.1002/mame.202200617, url = https://onlinelibrary.wiley.com/doi/abs/10.1002/mame.202200617, eprint = https://onlinelibrary.wiley.com/doi/pdf/10.1002/mame.202200617, abstract = Abstract 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., year = 2023</enrichment>
    <enrichment key="opus.import.dataHash">md5:c633b881f1ee45b20987d8a07b5e9747</enrichment>
    <enrichment key="opus.import.date">2023-07-03T11:16:51+00:00</enrichment>
    <enrichment key="opus.import.file">/tmp/phplufNEu</enrichment>
    <enrichment key="opus.import.format">bibtex</enrichment>
    <enrichment key="opus.import.id">64a2ae23de4c21.61301363</enrichment>
    <enrichment key="SourceTitle">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</enrichment>
    <enrichment key="DOI_VoR">https://doi.org/10.1002/mame.202200617</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Kostyantyn Grytsenko</author>
    <author>Yurii Kolomzarov</author>
    <author>Peter Lytvyn</author>
    <author>Olga Kondratenko</author>
    <author>Mykola Sopinskyy</author>
    <author>Iryna Lebedyeva</author>
    <author>Agata Niemczyk</author>
    <author>Jolanta Baranowska</author>
    <author>Dariusz Moszyński</author>
    <author>Claus Villringer</author>
    <author>Sigurd Schrader</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>deposition in vacuum</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>multiphase structure formation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>optical property</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>plasma</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>polytetrafluoroethylene thin film</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="institutes" number="">Fachbereich Ingenieur- und Naturwissenschaften</collection>
    <collection role="open_access" number="">open_access</collection>
    <collection role="Funding" number="">Projekt DEAL</collection>
    <collection role="Funding" number="">Publikationsfonds der TH Wildau</collection>
    <collection role="green_open_access" number="1">Gold Open Access</collection>
    <thesisPublisher>Technische Hochschule Wildau</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-th-wildau/files/1758/mme.pdf</file>
  </doc>
</export-example>
