Interface Dependence of Charge Formation Dynamics in Hexabenzocoronene-C₆₀ Interface Dependence of Charge Formation Dynamics in Hexabenzocoronene--C60

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著者

    • Kamioka Hayato
    • Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
    • Yamamoto Yohei
    • Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
    • Fukushima Takanori
    • Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
    • Aida Takuzo
    • Functional Soft Matter Research Group, RIKEN Advanced Science Institute, Wako, Saitama 351-0198, Japan

抄録

Charge formation on the donor--acceptor (D--A) interface is the key process in organic photovoltaics (OPVs). Here, we experimentally demonstrated that the charge formation dynamics in the hexabenzocoronene (HBC)--C60 dyad system crucially depends on the structure of the D--A interface. In the self-assembled (SA) film with well-defined tube-type interface, we observed a conversion process from the donor HBC exciton (D*) to the donor charge (D+). Reflecting the two-dimensional (2D) shape of the respective domains, the charge formation time (\tau_{\text{rise}} = 7.9 ps) in the SA film is much slower than \tau_{\text{rise}} (\leq 1 ps) in the nonassembled (NA) film.

収録刊行物

  • Applied physics express

    Applied physics express 5(6), 062401-062401-3, 2012-06-25

    The Japan Society of Applied Physics

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各種コード

  • NII論文ID(NAID)
    10030769786
  • NII書誌ID(NCID)
    AA12295133
  • 本文言語コード
    EN
  • 資料種別
    SHO
  • ISSN
    18820778
  • NDL 記事登録ID
    023762902
  • NDL 請求記号
    Z78-A526
  • データ提供元
    CJP書誌  NDL  JSAP 
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