Design of transparent anodes for resonant cavity enhanced light harvesting in organic solar cells

Nicholas P. Sergeant, Afshin Hadipour, Bjoern Niesen, David Cheyns, Paul Heremans, Peter Peumans, Barry P. Rand

Research output: Contribution to journalArticle

187 Scopus citations

Abstract

The use of an ITO-free MoO 3/Ag/MoO 3 anode to control the photon harvesting in PCDTBT:PC 70BM solar cells is proposed. At first sight, the fact that these anodes possess reduced far-field transmission compared to ITO may seem to be a disadvantage. But, despite this, we show that by carefully tuning the resonant optical cavity we can enhance the external quantum efficiency close to the band edge of PCDTBT, resulting in high photocurrent and power conversion efficiency on par with ITO.

Original languageEnglish (US)
Pages (from-to)728-732
Number of pages5
JournalAdvanced Materials
Volume24
Issue number6
DOIs
StatePublished - Feb 7 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • light-trapping
  • organic solar cells
  • photonics
  • silver
  • transparent conductors

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