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Original Paper

Large polycyclic aromatic hydrocarbons for application in donor–acceptor photovoltaics

  1. Holger Christian Hesse1,
  2. Christoph Schaffer1,
  3. Christian Hundschell1,
  4. Akimitsu Narita2,
  5. Xinliang Feng2,
  6. Klaus Müllen2,
  7. Bert Nickel1,
  8. Lukas Schmidt-Mende1,3,*

Article first published online: 9 JAN 2012

DOI: 10.1002/pssa.201127571

Issue

physica status solidi (a)

physica status solidi (a)

Volume 209, Issue 4, pages 785–789, April 2012

Additional Information

How to Cite

Hesse, H. C., Schaffer, C., Hundschell, C., Narita, A., Feng, X., Müllen, K., Nickel, B. and Schmidt-Mende, L. (2012), Large polycyclic aromatic hydrocarbons for application in donor–acceptor photovoltaics. Phys. Status Solidi A, 209: 785–789. doi: 10.1002/pssa.201127571

Author Information

  1. 1

    Department of Physics and Center for Nanoscience (CeNS), Ludwigs Maximilians University Munich, Amalienstr. 54, 80799 Munich, Germany

  2. 2

    Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany

  3. 3

    Department of Physics, University of Konstanz, Universitätsstrasse 10, 78457 Konstance, Germany

*Phone: +49 7531 88 5409, Fax: +49 7531 88 4788; Web: hybrid-nanostructures.physik.lmu.de and cms.uni-konstanz.de/physik/schmidt-mende/

Publication History

  1. Issue published online: 29 MAR 2012
  2. Article first published online: 9 JAN 2012
  3. Manuscript Accepted: 9 DEC 2011
  4. Manuscript Revised: 3 DEC 2011
  5. Manuscript Received: 27 SEP 2011

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Keywords:

  • exciton diffusion;
  • graphene;
  • organic photovoltaics;
  • photoluminescence quenching

Abstract

Thumbnail image of graphical abstract

We present the photovoltaic application of a donor–acceptor system consisting of very large polycyclic aromatic hydrocarbons. Using vacuum sublimated hexa-peri-hexabenzocoronenes we evidence long exciton diffusion lengths of approximately 25 nm. In conjunction with the heaxfluorinated analogue for the first time a photovoltaic device using nanographene as active material for both donor and acceptor compounds was fabricated. The bi-layered device exhibits a remarkably high open circuit voltage of 1.39 V. Light absorption of the photoactive materials used here is strictly confined to wavelengths below 500 nm, rendering this approach especially interesting for the application in semi-transparent devices as well as multi-layered and tandem solar cells.

The photovoltaic performance of devices based on vacuum sublimated hexa-peri-hexabenzocoronenes is shown.

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