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Keywords:

  • copper zinc tin sulfide;
  • counter electrodes;
  • dye-sensitized solar cells;
  • energy conversion;
  • photochemistry
Thumbnail image of graphical abstract

A novel environmentally friendly Pt-free counter-electrode (CE) for dye-sensitized solar cells (DSSCs) based on low-cost quaternary copper zinc tin sulfide (CZTS) nanocrystals is described by Z. Lin and co-workers in their Communication on page 11 739 ff. CZTS nanocrystals were synthesized and spin-coated onto fluorine-doped tin oxide glass. After selenization of the CZTS semiconductor, the power conversion efficiency of the resulting DSSC was comparable to that of the device with a Pt CE.