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2005 Fiscal Year Final Research Report Summary

Creation of Nano-Molecular Assemblies Using Intermolecular Interactions and its Photofunction

Research Project

Project/Area Number 16310073
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Nanostructural science
Research InstitutionKyoto University

Principal Investigator

IMAHORI Hiroshi  Kyoto University, Graduate School of Engineering, Professor, 工学研究科, 教授 (90243261)

Project Period (FY) 2004 – 2005
KeywordsPorphyrin / Fullerene / Dendrimer / Nanoparticle / Cluster / Solar cell / Host-guest interaction / Hydrogen bonding
Research Abstract

Novel organic solar cells have been prepared using quaternary self-organization of porphyrin (donor) and fullerene (acceptor) units by clusterization with gold nanoparticles on nanostructured SnO_2 electrodes. First, porphyrin-alkanethiolate monolayer-protected gold nanoparticles (H_2PC nMPP : nis the number of methylene groups in the spacer) are prepared (1st step) starting from the primary component (porphyrin-alkanethiol). These porphyrin-modified gold nanoparticles form complexes with fullerene molecules (2nd step), and they are clusterized in acetonitrile/toluene mixed solvent (3^<rd> step). The highly colored composite clusters can then be assembled as threedimensional arrays onto nanostructured SnO_2 films to afford the ITO/SnO_2/(H_2PC nMPP+C_<60>)_m electrode using an electrophoretic deposition method (4^<th> step). The film of the composite clusters with gold nanoparticle exhibits an incident photon-to-photocurrent efficiency (IPCE) as high as 54% and broad photocurrent action spectra (up to 1000 nm). The power conversion efficiency of the ITO/SnO_2/(H_2PC15MPP+C_<60>)_m composite electrode reaches as high as 1.5%, which is 45 times higher than that of the reference system consisting of the both single components of porphyrin and fullerene.

  • Research Products

    (12 results)

All 2006 2005

All Journal Article (11 results) Book (1 results)

  • [Journal Article] Structure and Photoelectrochemical Properties of Nanostructured SnO_2 Electrodes Deposited Electrophoretically with the Composite Clusters of Porphyrin-Modified Gold Nanoparticle with a Long Spacer and Fullerene2006

    • Author(s)
      H.Imahori et al.
    • Journal Title

      Tetrahedron 62・9

      Pages: 1955-1966

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effects of Fullerene Substituents on Structure and Photoelectrochemical Properties of Fullerene Nanoclusters Electrophoretically Deposited on Nanostructured SnO_2 Electrodes2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      J. Phys. Chem. B 109・12

      Pages: 5700-5706

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Host-Guest Interactions in the Supramolecular Incorporation of Fullerenes into Tailored Holes on Porphyrin-Modified Gold Nanoparticles in Molecular Photovoltaics2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      Chem. Eur. J. 11・24

      Pages: 7265-7275

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Photovoltaic Cells Using Composite Nanoclusters of Porphyrins and Fullerenes with Gold Nanoparticles2005

    • Author(s)
      T.Hasobe et al.
    • Journal Title

      J. Am. Chem. Soc. 127・4

      Pages: 1216-1228

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Molecular Photoelectrochemical Devices : Supramolecular Incorporation of C_<60> Molecules into Tailored Holes on Porphyrin-Modified Gold Nanoclusters2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      Adv. Mater. 17・14

      Pages: 1727-1730

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Hydrogen Bonding Effects on the Surface Structure and Photoelectrochemical Propertie of Nanostructured SnO_2 Electrodes Modified with Porphyrin and Fullerene Composites2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      J Phys. Chem. B. 109・39

      Pages: 18465-18474

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effects of Fullerene Substituents on Structure and Photoelectrochemical Properties of Fullerene Nanoclusters Electrophoretically Deposited on Nanostructured SnO_2 Electrodes2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      J.Phys.Chem.B 109・12

      Pages: 5700-5706

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Host-Guest Interactions in the Supramolecular Incorporation of Fullerenes into Tailored Holes on Porphyrin-Modified Gold Nanoparticles in Molecular Photovoltaics2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      Chem.Eur.J. 11・24

      Pages: 7265-7275

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Photovoltaic Cells Using Composite Nanoclusters of Porphyrins and Fullerenes with Gold Nanoparticles2005

    • Author(s)
      T.Hasobe et al.
    • Journal Title

      J.Am.Chem Soc. 127・4

      Pages: 1216-1228

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Molecular Photoelectrochemical Devices: Supramolecular Incorporation of C_<60> Molecules into Tailored Holes on Porphyrin-Modified Gold Nanoclusters2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      Adv.Mater. 17・14

      Pages: 1727-1730

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Hydrogen Bonding Effects on the Surface Structure and Photoelectrochemical Properties of Nanostructured SnO_2 Electrodes Modified with Porphyrin and Fullerene Composites2005

    • Author(s)
      H.Imahori et al.
    • Journal Title

      J.Phys.Chem.B 109・39

      Pages: 18465-18474

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 薄膜太陽電池の開発最前線(分担執筆)2005

    • Author(s)
      今堀 博 他
    • Total Pages
      11
    • Publisher
      エヌ・ティー・エス
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2007-12-13  

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