Efficiency enhancement in low-bandgap polymer solar cells by processing with alkane dithiols

High charge-separation efficiency combined with the reduced fabrication costs associated with solution processing and the potential for implementation on flexible substrates make ‘plastic’ solar cells a compelling option for tomorrow’s photovoltaics1

J. Peet

2007

Key concepts

Scholarcy highlights

  • High charge-separation efficiency combined with the reduced fabrication costs associated with solution processing and the potential for implementation on flexible substrates make ‘plastic’ solar cells a compelling option for tomorrow’s photovoltaics1
  • Devices were fabricated by J.P. and J.Y.K
  • By incorporating a few volume per cent of alkanedithiols in the solution used to spin-cast films comprising a low-bandgap polymer and a fullerene derivative, the power-conversion efficiency of photovoltaic cells is increased from 2.8% to 5.5% through altering the bulk heterojunction morphology5
  • Heeger is a member of the board of directors of Konarka Technologies, and serves as chief scientist
  • The work reported here was carried out at UCSB; the University of California is seeking intellectual property rights on this discovery

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