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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 28, Iss. 8 — Aug. 1, 2011
  • pp: 1793–1797

Design of efficient plasmonic thin-film solar cells based on mode splitting

Tong Li, Lei Dai, and Chun Jiang  »View Author Affiliations

JOSA B, Vol. 28, Issue 8, pp. 1793-1797 (2011)

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A new efficient plasmonic structure for solar energy absorption is designed. Numerical simulations demonstrate the absorption enhancement in a symmetrical structure based on the mode coupling between the localized plasmonic mode in an Ag strip pair and the excited waveguide mode in a silicon slab. Then the method of symmetry breaking is used to excite the dark modes that can further enhance the absorption ability. The new structure is compared with a bare thin-film Si solar cell, and results show that the integrated light harvest efficiency is greatly improved for the TM polarization in such thin geometry.

© 2011 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(350.6050) Other areas of optics : Solar energy
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Optics at Surfaces

Original Manuscript: January 25, 2011
Revised Manuscript: May 29, 2011
Manuscript Accepted: June 7, 2011
Published: July 5, 2011

Tong Li, Lei Dai, and Chun Jiang, "Design of efficient plasmonic thin-film solar cells based on mode splitting," J. Opt. Soc. Am. B 28, 1793-1797 (2011)

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