Development of CuInSe2 nanocrystal and nanoring inks for low-cost solar cells.


The creation of a suitable inorganic colloidal nanocrystal ink for use in a scalable coating process is a key step in the development of low-cost solar cells. Here, we present a facile solution synthesis of chalcopyrite CuInSe 2 nanocrystals and demonstrate that inks based on these nanocrystals can be used to create simple solar cells, with our first cells exhibiting an efficiency of 3.2% under AM1.5 illumination. We also report the first solution synthesis of uniform hexagonal shaped single crystals CuInSe 2 nanorings by altering the synthesis parameter.

DOI: 10.1021/nl802042g

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Progress in PhotoVoltaics

  • J. Ward, A. Duda
  • 1996
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