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Nano Lett. 2008 Sep;8(9):2982-7. doi: 10.1021/nl802042g. Epub 2008 Aug 2.

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

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  • 1School of Chemical Engineering and the Energy Center, Purdue University, West Lafayette, Indiana 47906, USA.


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.

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