Recent work with polyhedral oligomeric silsesquioxanes (POSS) modified polymers has identified several enhanced characteristics in the hybrid material, including improved radiation and atomic oxygen durability in simulated space environment and extended duration space flight test experiments. Results are summarized for simulated radiation and oxidizing environment tests on POSS modified epoxy resins polyimide and DC93-500 silicon. Preliminary tests indicate that the addition of POSS into DC93-500 improves resistance to frosting due to oxidization of the surface. Additionally the hybrid material has less surface tack and self-adhesion than the stock material providing improved handling characteristics. Additional tests indicate that the hybrid material has the same radiation tolerance as the stock material when exposed to 2MeV protons. In addition to the DC93-500, a series of epoxy polymers of various composition and formulations have been screened to identify materials suitable for usage as a cover glass replacement material on single crystal or thin film solar cells. A summary of the effects of radiation and oxidizing environment on the transmittance and durability is presented.


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    Title :

    Radiation tolerant POSS solar cell cover glass replacement material


    Additional title:

    Strahlungstolerantes POSS Solarzellen-Deckglas Ersatzmaterial


    Contributors:
    Wells, B. (author) / Brandhorst, H. (author) / Isaacs-Smith, T. (author) / Lichtenhan, J. (author) / Fu, B. (author)


    Publication date :

    2007


    Size :

    5 Seiten, 9 Bilder, 6 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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