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Fabrication and Characterization of Fullerene-Based Bulk Heterojunction Solar Cells with Porphyrin, CuInS2, Diamond and Exciton-Diffusion Blocking Layer

Author

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  • Takeo Oku

    (Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan)

  • Akihiro Takeda

    (Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan)

  • Akihiko Nagata

    (Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan)

  • Tatsuya Noma

    (Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan)

  • Atsushi Suzuki

    (Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan)

  • Kenji Kikuchi

    (Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan)

Abstract

Fullerene-based bulk heterojunction solar cells were fabricated, and the electronic and optical properties were investigated. C 60 were used as n-type semiconductors, and porphyrin, CuInS 2 and diamond were used as p-type semiconductors. An effect of exciton-diffusion blocking layer of perylene derivative on the solar cells between active layer and metal layer was also investigated. Optimized structures with the exciton-diffusion blocking layer improved conversion efficiencies. Electronic structures of the molecules were investigated by molecular orbital calculation, and energy levels of the solar cells were discussed. Nanostructures of the solar cells were investigated by transmission electron microscopy, electron diffraction and X-ray diffraction, which indicated formation of mixed nanocrystals.

Suggested Citation

  • Takeo Oku & Akihiro Takeda & Akihiko Nagata & Tatsuya Noma & Atsushi Suzuki & Kenji Kikuchi, 2010. "Fabrication and Characterization of Fullerene-Based Bulk Heterojunction Solar Cells with Porphyrin, CuInS2, Diamond and Exciton-Diffusion Blocking Layer," Energies, MDPI, vol. 3(4), pages 1-15, April.
    • Handle: RePEc:gam:jeners:v:3:y:2010:i:4:p:671-685:d:7829
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    References listed on IDEAS

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    1. M. Granström & K. Petritsch & A. C. Arias & A. Lux & M. R. Andersson & R. H. Friend, 1998. "Laminated fabrication of polymeric photovoltaic diodes," Nature, Nature, vol. 395(6699), pages 257-260, September.
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