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Keywords:

  • Organic solar cells;
  • Merocyanine dyes;
  • Small molecules;
  • Spin-coating;
  • Vacuum deposition
Thumbnail image of graphical abstract

Identically configured bulk heterojunction organic solar cells based on merocyanine dye donor and fullerene acceptor compounds (see figure) are manufactured either from solution or by vacuum deposition, to enable a direct comparison. Whereas the former approach is more suitable for screening purposes, the latter approach affords higher short-circuit current density and power conversion efficiency.