学術雑誌論文 Morphology of F8T2/PC71BM Blend Film as Investigated by Scanning Transmission X-ray Microscope (STXM)

Moritomo, Yutaka  ,  Yonezawa, Kouhei  ,  Sakurai, Takeaki  ,  Yasuda, Takeshi  ,  Takeichi, Yasuo  ,  Kamioka, Hayato  ,  Suga, Hiroki  ,  Takahashi, Yoshio  ,  Yoshida, Yuji  ,  Inami, Nobuhito  ,  Mase, Kazuhiko  ,  Ono, Kanta

620 ( 1 )  , pp.32 - 37 , 2015-12 , Taylor and Francis, Inc
ISSN:1542-1406
NII書誌ID(NCID):AA11836169
内容記述
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.
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