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Keywords:

  • P3HT/PCBM;
  • polymer solar cells;
  • rod-coil diblock copolymers;
  • passivation layers;
  • hole-blocking layers
Thumbnail image of graphical abstract

A new approach to improve the power conversion efficiency of polymer bulk-heterojunction solar cells is demonstrated by generating a silica-like passivation layer embedded along the three-dimensionally intertwined interfaces between the nanoscopic domains of P3HT and PCBM by addition of an aymmetric block copolymer containing a short organo-silica precursor.