Polymer-Polymer Förster Resonance Energy Transfer Significantly Boosts the Power Conversion Efficiency of Bulk-Heterojunction Solar Cells

Vinay Gupta, Vishal Bharti, Mahesh Kumar, Suresh Chand, Alan J. Heeger

Research output: Contribution to journalArticlepeer-review

204 Scopus citations

Abstract

Optically resonant donor polymers can exploit a wider range of the solar spectrum effectively without a complicated tandem design in an organic solar cell. Ultrafast Förster resonance energy transfer (FRET) in a polymer-polymer system that significantly improves the power conversion efficiency in bulk heterojunction polymer solar cells from 6.8% to 8.9% is demonstrated, thus paving the way to achieving 15% efficient solar cells.

Original languageBritish English
Pages (from-to)4398-4404
Number of pages7
JournalAdvanced Materials
Volume27
Issue number30
DOIs
StatePublished - 1 Aug 2015

Keywords

  • bulk heterojunction solar cells
  • energy transfer
  • polymers
  • power conversion efficiency
  • transient spectroscopy

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