Enhancement of optical absorption in thin-film organic solar cells through the excitation of plasmonic modes in metallic gratings

Changjun Min, Jennifer Li, Georgios Veronis, Jung Yong Lee, Shanhui Fan, Peter Peumans

Research output: Contribution to journalArticlepeer-review

204 Scopus citations

Abstract

We theoretically investigate the enhancement of optical absorption in thin-film organic solar cells in which the top transparent electrode is partially substituted by a periodic metallic grating. We show that the grating can result in broadband optical absorption enhancement for TM-polarized light, due to the large field enhancement in the vicinity of the strips of the grating, associated with the excitation of plasmonic modes. The overall optical absorption in the organic layers can be greatly enhanced up to ∼50% for such solar cell structures. © 2010 American Institute of Physics.
Original languageEnglish (US)
Pages (from-to)133302
JournalApplied Physics Letters
Volume96
Issue number13
DOIs
StatePublished - Mar 29 2010
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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