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Keywords:

  • density functional calculations;
  • dye/pigments;
  • electrochemistry;
  • pyrroles;
  • solar cells
Thumbnail image of graphical abstract

Harvesting the sunshine: Two new pyrrole-containing organic dyes were rationally designed and easily prepared. Thanks to the special electronic properties of pyrrole moieties and the introduction of the non-coplanar aromatic rings through a single bond (blue part in the above structure), a solar-cell device based on the sensitizer LI-1 yields an overall conversion efficiency as high as 91 % of the standard cell from N719.