Remarkable Dependence of the Final Charge Separation Efficiency on the Donor–Acceptor Interaction in Photoinduced Electron Transfer

• Higashino, Tomohiro

• Yamada, Tomoki

• Yamamoto, Masanori

• Furube, Akihiro

• Tkachenko, Nikolai V.

• Miura, Taku

• Kobori, Yasuhiro

• Jono, Ryota

• Yamashita, Koichi

• Imahori, Hiroshi

Abstract

The unprecedented dependence of final charge separation efficiency as a function of donor–acceptor interaction in covalently-linked molecules with a rectilinear rigid oligo-p-xylene bridge has been observed. Optimization of the donor–acceptor electronic coupling remarkably inhibits the undesirable rapid decay of the singlet charge-separated state to the ground state, yielding the final long-lived, triplet charge-separated state with circa 100% efficiency. This finding is extremely useful for the rational design of artificial photosynthesis and organic photovoltaic cells toward efficient solar energy conversion.

Journal

• Angewandte Chemie International Edition

  Angewandte Chemie International Edition 55 (2), 629-633, 2015-11-26

  Wiley-VCH Verlag GmbH & Co. KGaA

Keywords

• charge separation
• electron transfer
• electronic coupling
• exciplexes
• Marcus theory

Details

• CRID: 1050001337984275072
• NII Article ID: 120006558388
• NII Book ID: AA0052535X
• ISSN: 14337851
• ISSN: 15213773
• Web Site: http://repo.lib.tokushima-u.ac.jp/113058
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles