Wide-Bandgap Benzodithiophene-Benzothiadiazole Copolymers for Highly Efficient Multijunction Polymer Solar Cells

  • Duan C
  • Furlan A
  • Van Franeker J
 et al. 
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Abstract

Novel wide-bandgap semiconducting polymers are designed and synthesized for multijunction polymer solar cell (PSC) applications. In single-junction PSCs, BDT-FBT-2T exhibits efficiencies exceeding 6.5% for active layer thicknesses between 90 and 250 nm, with the highest efficiency of 7.7% at 100 and 250 nm. This enables tandem PSCs to be created with an efficiency of 8.9%.

Author-supplied keywords

  • high efficiency
  • multijunction
  • polymer solar cells
  • wide-bandgap polymers

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Authors

  • Chunhui Duan

  • Alice Furlan

  • Jacobus J. Van Franeker

  • Robin E.M. Willems

  • Martijn M. Wienk

  • René A.J. Janssen

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