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A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet

Author

Listed:
  • Ryota Sakamoto

    (Graduate School of Science, The University of Tokyo)

  • Ken Hoshiko

    (Graduate School of Science, The University of Tokyo)

  • Qian Liu

    (Institute of Molecular Functional Materials, Hong Kong Baptist University)

  • Toshiki Yagi

    (Graduate School of Science, The University of Tokyo)

  • Tatsuhiro Nagayama

    (Graduate School of Science, The University of Tokyo)

  • Shinpei Kusaka

    (Graduate School of Science, The University of Tokyo)

  • Mizuho Tsuchiya

    (Graduate School of Science, The University of Tokyo)

  • Yasutaka Kitagawa

    (Graduate School of Engineering Science, Osaka University
    Graduate School of Science, Osaka University)

  • Wai-Yeung Wong

    (Institute of Molecular Functional Materials, Hong Kong Baptist University
    HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park)

  • Hiroshi Nishihara

    (Graduate School of Science, The University of Tokyo)

Abstract

Two-dimensional polymeric nanosheets have recently gained much attention, particularly top-down nanosheets such as graphene and metal chalcogenides originating from bulk-layered mother materials. Although molecule-based bottom-up nanosheets manufactured directly from molecular components can exhibit greater structural diversity than top-down nanosheets, the bottom-up nanosheets reported thus far lack useful functionalities. Here we show the design and synthesis of a bottom-up nanosheet featuring a photoactive bis(dipyrrinato)zinc(II) complex motif. A liquid/liquid interfacial synthesis between a three-way dipyrrin ligand and zinc(II) ions results in a multi-layer nanosheet, whereas an air/liquid interfacial reaction produces a single-layer or few-layer nanosheet with domain sizes of >10 μm on one side. The bis(dipyrrinato)zinc(II) metal complex nanosheet is easy to deposit on various substrates using the Langmuir–Schäfer process. The nanosheet deposited on a transparent SnO2 electrode functions as a photoanode in a photoelectric conversion system, and is thus the first photofunctional bottom-up nanosheet.

Suggested Citation

  • Ryota Sakamoto & Ken Hoshiko & Qian Liu & Toshiki Yagi & Tatsuhiro Nagayama & Shinpei Kusaka & Mizuho Tsuchiya & Yasutaka Kitagawa & Wai-Yeung Wong & Hiroshi Nishihara, 2015. "A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet," Nature Communications, Nature, vol. 6(1), pages 1-9, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7713
    DOI: 10.1038/ncomms7713
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