Communication

Tuning the Energy Level Offset between Donor and Acceptor with Ferroelectric Dipole Layers for Increased Efficiency in Bilayer Organic Photovoltaic Cells

  1. Bin Yang1,
  2. Yongbo Yuan1,
  3. Pankaj Sharma2,
  4. Shashi Poddar2,
  5. Rafal Korlacki3,
  6. Stephen Ducharme2,
  7. Alexei Gruverman2,
  8. Ravi Saraf3,
  9. Jinsong Huang1,*

Article first published online: 13 FEB 2012

DOI: 10.1002/adma.201104509

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 11, pages 1455–1460, March 15, 2012

Additional Information

How to Cite

Yang, B., Yuan, Y., Sharma, P., Poddar, S., Korlacki, R., Ducharme, S., Gruverman, A., Saraf, R. and Huang, J. (2012), Tuning the Energy Level Offset between Donor and Acceptor with Ferroelectric Dipole Layers for Increased Efficiency in Bilayer Organic Photovoltaic Cells. Adv. Mater., 24: 1455–1460. doi: 10.1002/adma.201104509

Author Information

  1. 1

    Department of Mechanical and Materials Engineering and Nebraska, Center for Materials and Nanoscience, University of Nebraska–Lincoln, Lincoln, Nebraska 68588-0656, USA

  2. 2

    Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska–Lincoln, Lincoln, Nebraska 68588-0299, USA

  3. 3

    Department of Chemical and Biomolecular Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska–Lincoln, Lincoln, Nebraska 68588-0643, USA

*Department of Mechanical and Materials Engineering and Nebraska, Center for Materials and Nanoscience, University of Nebraska–Lincoln, Lincoln, Nebraska 68588-0656, USA.

Publication History

  1. Issue published online: 12 MAR 2012
  2. Article first published online: 13 FEB 2012
  3. Manuscript Revised: 28 DEC 2011
  4. Manuscript Received: 25 NOV 2011

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Keywords:

  • organic photovoltaics;
  • ferroelectrics;
  • dipole;
  • open circuit voltage
Thumbnail image of graphical abstract

Ultrathin ferroelectric polyvinylidene fluoride (70%)-tetrafluoroethylene (30%) copolymer film is inserted between the poly3(hexylthiophene) (P3HT) donor and [6,6]-phenyl-C61-butyric acid methylester (PCBM) acceptor layers as the dipole layer to tune the relative energy levels, which can potentially maximize the open circuit voltage of bilayer organic solar cells. In this work, the power conversion efficiency of P3HT/PCBM bilayer solar cells is demonstrated to be doubled with the inserted dipoles.

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