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Sullivan, Paul J.; Jones, T. S. (Tim S.); Ferguson, A. J.; Heutz, S. (2007)
Publisher: American Institute of Physics
Languages: English
Types: Article
Subjects: QD, TK
We have developed a method to improve the short circuit current density in copper phthalocyanine (CuPc)/fullerene (C60) organic solar cells by ~60% by modifying the CuPc crystal orientation through use of a molecular interlayer to maximize charge transport in the direction between the two electrodes. Powder x-ray diffraction and electronic absorption spectroscopy show that a thin 3,4,9,10-perylenetetracarboxylic dianhydride interlayer before CuPc growth templates the CuPc film structure, forcing the molecules to lie flat with respect to the substrate surface, although the intrastack orientation is unaffected. This modified stacking configuration facilitates charge transport and improves charge collection.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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