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Enhanced optical field intensity distribution in organic photovoltaic devices using external coatings

Appl. Phys. Lett. 89, 233502 (2006); doi:10.1063/1.2399937

Published 4 December 2006

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Brendan O'Connor, Kwang H. An, and Kevin P. Pipe
Department of Mechanical Engineering, The University of Michigan, Ann Harbor, Michigan 48109-2125

Yiying Zhao and Max Shtein
Department of Material Science and Engineering, The University of Michigan, Ann Arbor, Michigan 48109-2125
An external dielectric coating is shown to enhance energy conversion in an organic photovoltaic cell with metal anode and cathode by increasing the optical field intensity in the organic layers. Improved light incoupling in the device is modeled using transfer matrix simulations and is confirmed by in situ measurement of the photocurrent during growth of the coating. The optical field intensity in optimized cell geometries is predicted to exceed that in analogous devices using indium tin oxide, both cell types having equivalent anode sheet resistance, suggesting a broader range of compatible substrates (e.g., metal foils) and device processing techniques. ©2006 American Institute of Physics
History: Received 7 August 2006; accepted 23 October 2006; published 4 December 2006
Permalink: http://link.aip.org/link/?APPLAB/89/233502/1
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EDITORIALLY RELATED

  1. Comment on “Enhanced optical field intensity distribution in organic photovoltaic devices using external coatings” [Appl. Phys. Lett. 89, 233502 (2006)]
    Q. L. Song et al.
    Appl. Phys. Lett. 91, 266103 (2007)

KEYWORDS and PACS

Keywords
PACS
  • 85.60.Bt
    Optoelectronic device characterization, design, and modeling
  • YEAR: 2006

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ISSN:
0003-6951 (print)   1077-3118 (online)
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