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Keywords:

  • conducting materials;
  • crystal growth;
  • energy conversion;
  • interfaces;
  • nanotechnology
Thumbnail image of graphical abstract

A new approach toward higher efficiency organic photovoltaic devices (OPVs) is described. Complementarity in shape between the donor (contorted hexabenzocoronene, see picture) and acceptor (buckminsterfullerene) molecules results in OPVs that perform surprisingly well. This exploitation of host–guest chemistry at the organic/organic interface demonstrates a new direction for OPV device design.