Plasma Surface Modification of Polymer Backsheets: Origins of Future Interfacial Barrier/Backsheet Failure (Poster) Metadata

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Title

  • Main Title Plasma Surface Modification of Polymer Backsheets: Origins of Future Interfacial Barrier/Backsheet Failure (Poster)

Creator

  • Author: Pankow, J. W.
    Creator Type: Personal
  • Author: Glick, S. H.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: National Renewable Energy Laboratory (U.S.)
    Place of Publication: Golden, Colorado
    Additional Info: National Renewable Energy Laboratory (NREL), Golden, CO.

Date

  • Creation: 2006-05-01

Language

  • English

Description

  • Content Description: Flexible polymer substrates coated with inorganic oxide moisture barriers are a potential replacement for glass backsheets in thin-film PV (photovoltaic) modules. Silicon oxynitride (SiO{sub x}N{sub y}) deposited by plasma enhanced chemical vapor deposition (PECVD) on polyethylene terephthalate (PET) represents one potential new backsheet candidate. Barrier deposition runs at NREL have included a nitrogen-rich plasma pretreatment prior to barrier deposition with the intention of cleaning the PET surface and enhancing adhesion of the SiO{sub x}N{sub y} barrier film to PET; however, test coupons of PET/barrier/EVA/TPE failed after damp-heat exposure. (EVA is ethylene vinyl acetate and TPE is Tedlar{reg_sign}-PET-EVA). PET substrates exposed to plasma conditions similar to those used in pretreatment were examined by X-ray photoelectron spectroscopy (XPS) to reveal that new low molecular weight PET fragments were created at the PET surface. These fragments are responsible for barrier/PET interfacial failure and barrier transfer to the EVA encapsulant side following damp heat exposure.
  • Physical Description: 1 p.

Subject

  • STI Subject Categories: 36 Materials Science
  • Keyword: Glass Backsheets
  • Keyword: Oxides
  • Keyword: Glass
  • Keyword: Deposition
  • Keyword: Cleaning
  • Keyword: Thin-Film
  • Keyword: Inorganic Oxide Moisture Barriers
  • Keyword: Polymer Substrates
  • Keyword: Adhesion
  • Keyword: Polymers
  • Keyword: Energy Conversion
  • Keyword: Polyvinyls
  • Keyword: Substrates
  • STI Subject Categories: 14 Solar Energy
  • Keyword: Modifications
  • Keyword: Moisture
  • Keyword: X-Ray Photoelectron Spectroscopy Polymer Substrates
  • Keyword: Molecular Weight
  • Keyword: Ethylene
  • Keyword: Pv
  • Keyword: Photovoltaic
  • Keyword: Solar Energy - Photovoltaics
  • Keyword: Pet
  • Keyword: Chemical Vapor Deposition
  • Keyword: Polyethylenes
  • Keyword: Silicon
  • Keyword: Plasma

Source

  • Conference: Prepared for the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion (WCPEC-4), 7-12 May 2006, Waikoloa, Hawaii

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: NREL/PO-520-39954
  • Grant Number: AC36-99-GO10337
  • Office of Scientific & Technical Information Report Number: 893118
  • Archival Resource Key: ark:/67531/metadc883298
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