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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1431–1433

Resonant cavity enhanced light harvesting in flexible thin-film organic solar cells

Nicholas P. Sergeant, Bjoern Niesen, Albert S. Liu, Lee Boman, Chris Stoessel, Paul Heremans, Peter Peumans, Barry P. Rand, and Shanhui Fan  »View Author Affiliations

Optics Letters, Vol. 38, Issue 9, pp. 1431-1433 (2013)

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Dielectric/metal/dielectric (DMD) electrodes have the potential to significantly increase the absorption efficiency and photocurrent in flexible organic solar cells. We demonstrate that this enhancement is attributed to a broadband cavity resonance. Silver-based semitransparent DMD electrodes with sheet resistances below 10  ohm/sq. are fabricated on flexible polyethylene terephthalate (PET) substrates in a high-throughput roll-to-roll sputtering tool. We carefully study the effect of the semitransparent DMD electrode (here composed of ZnxSnyOz/Ag/InxSnyOz) on the optical device performance of a copper phthalocyanine (CuPc)/fullerene (C60) bilayer cell and illustrate that a resonant cavity enhanced light trapping effect dominates the optical behavior of the device.

© 2013 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(310.6860) Thin films : Thin films, optical properties
(310.6845) Thin films : Thin film devices and applications
(310.7005) Thin films : Transparent conductive coatings

ToC Category:
Thin Films

Original Manuscript: January 2, 2013
Revised Manuscript: March 28, 2013
Manuscript Accepted: March 29, 2013
Published: April 24, 2013

Nicholas P. Sergeant, Bjoern Niesen, Albert S. Liu, Lee Boman, Chris Stoessel, Paul Heremans, Peter Peumans, Barry P. Rand, and Shanhui Fan, "Resonant cavity enhanced light harvesting in flexible thin-film organic solar cells," Opt. Lett. 38, 1431-1433 (2013)

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