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Abstract

Clarification of the morphology of bulk heterojunction (BHJ) is indispensable for true comprehension of the organic solar cells. Here, we performed scanning transmission X-ray microscopy (STXM) for a poly-(9,9-dioctylfluorene-co-bithiophene) (F8T2)/[6,6]-phenyl C71-butyric acid methyl ester (PC71BM) blend film annealed at various temperatures (Tan). We found that the fullerene concentration within the polymer-rich domain decreases with Tan while the domain size (∼230 nm) is essentially unchanged. We will discuss the interrelation between the film morphology and the photovoltaic performance.

Journal

  • Molecular Crystals and Liquid Crystals

    Molecular Crystals and Liquid Crystals 620(1), 32-37, 2015-12

    Taylor and Francis, Inc

Codes

  • NII Article ID (NAID)
    120005694602
  • NII NACSIS-CAT ID (NCID)
    AA11836169
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    1542-1406
  • Data Source
    IR 
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