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Open Engineering

formerly Central European Journal of Engineering

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Effects of germanium addition to copper phthalocyanine/fullerene-based solar cells

Takeo Oku
  • Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga, 522-8533, Japan
  • Email:
/ Kazuma Kumada
  • Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga, 522-8533, Japan
  • Email:
/ Atsushi Suzuki
  • Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga, 522-8533, Japan
  • Email:
/ Kenji Kikuchi
  • Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga, 522-8533, Japan
  • Email:
Published Online: 2012-04-11 | DOI: https://doi.org/10.2478/s13531-011-0069-7


Copper phthalocyanine/fullerene-based solar cells were fabricated, and the electronic and optical properties were investigated. Effects of germanium addition to the solar cells were also investigated, which resulted in increase of power conversion efficiencies of the solar cells. Nanostructures of the solar cells were investigated by transmission electron microscopy and electron diffraction, which indicated formation of Ge compound nanoparticles in the copper phthalocyanine layers. Energy levels of the solar cells were discussed from the present analysis data.

Keywords: Thin films; Chemical synthesis; Solar cells; Semiconductor; Nanostructure

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About the article

Published Online: 2012-04-11

Published in Print: 2012-06-01

Citation Information: Open Engineering, ISSN (Online) 2391-5439, DOI: https://doi.org/10.2478/s13531-011-0069-7. Export Citation

© 2012 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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