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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S5 — Sep. 10, 2012
  • pp: A740–A753

Analysis and optimization of surface plasmon-enhanced organic solar cells with a metallic crossed grating electrode

Eungkyu Lee and Changsoon Kim  »View Author Affiliations

Optics Express, Vol. 20, Issue S5, pp. A740-A753 (2012)

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We perform a systematic analysis of enhanced short-circuit current density (Jsc) in organic solar cells (OSCs) where one metallic electrode is optically thick and the other consists of a two-dimensional metallic crossed grating. By examining a model device representative of such surface plasmon (SP)-enhanced OSCs by the Fourier modal and finite-element methods for electromagnetic and exciton diffusion calculations, respectively, we provide general guidelines to maximize Jsc of the SP-enhanced OSCs. Based on this study, we optimize the performance of a small-molecule OSC employing a copper phthalocyanine–fullerene donor–acceptor pair, demonstrating that the optimized SP-enhanced device has Jsc that is 75 % larger than that of the optimized device with an ITO-based conventional structure.

© 2012 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(240.6680) Optics at surfaces : Surface plasmons
(260.5740) Physical optics : Resonance
(250.5403) Optoelectronics : Plasmonics
(310.6845) Thin films : Thin film devices and applications

ToC Category:

Original Manuscript: July 19, 2012
Revised Manuscript: August 23, 2012
Manuscript Accepted: August 24, 2012
Published: August 29, 2012

Eungkyu Lee and Changsoon Kim, "Analysis and optimization of surface plasmon-enhanced organic solar cells with a metallic crossed grating electrode," Opt. Express 20, A740-A753 (2012)

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