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Single crystals of fullerene (C60) makes organic thick film solar cells and self supporting organic solar cells possible.

Author(s): Prakash R. Somani | Savita P. Somani | M. Umeno

Journal: Carbon : Science and Technology
ISSN 0974-0546

Volume: 1;
Issue: 1;
Start page: 1;
Date: 2008;
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Keywords: Fullerene Single Crystals | Organic Solar Cell | Thick Film solar cell | Carbon

Single crystals of Fullerene (SC-C60) were synthesized by simple liquid/liquid interface precipitation method. Organic thick film solar cell (with an active layer thickness of approximately 20 microns thick) is demonstrated by combining SC-C60 with poly(3-octylthiophene). Our preliminary results indicate that organic thick film solar cells are possible; which were considered to be impossible due to low mobility and small exciton diffusion lengths in most of the organic materials including small organic molecules and conjugated conducting polymers. Further, SC-C60 seems to be promising materials for organic photovoltaics. Self supporting organic solar cell is also demonstrated using SC-C60.
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