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Keywords:

  • solar cells;
  • bulk heterojunctions;
  • organic polymers;
  • solution processing;
  • solvent additives
Thumbnail image of graphical abstract

A systematic evaluation of a novel conjugated polymer, bearing alkyl side chains on both the donor and acceptor units, is conducted using nanoscale characterization techniques and device fabrication. How to manage the use of solvent additives to achieve power-conversion efficiencies of up to 3.7% is demonstrated.