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Proceedings Paper

Colloidal crystals as nanostructured templates for organic solar cells
Author(s): Sarah Berhanu; Martyn A. McLachlan; David W. McComb; Tim S. Jones
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Paper Abstract

We introduce a novel nanostructuring method for bulk heterojunction solar cells which is aimed at overcoming current limitations associated with short exciton diffusion lengths and poor charge transport. By employing a nanosphere templating technique porous interconnected films of copper phthalocyanine (CuPc) have been prepared. Subsequent infiltration of the CuPc structures with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) results in the formation of three dimensionally structured nanocomposites, consisting of interpenetrating and interconnected networks. The lengthscale separation in the composite can be engineered to match exciton diffusion lengths and the interconnectivity is compatible with good charge transport. We propose this templating strategy as a widely applicable solution to the continued development of low-cost organic photovoltaics.

Paper Details

Date Published: 26 August 2008
PDF: 10 pages
Proc. SPIE 7052, Organic Photovoltaics IX, 70521H (26 August 2008); doi: 10.1117/12.803554
Show Author Affiliations
Sarah Berhanu, Imperial College London (United Kingdom)
Martyn A. McLachlan, Imperial College London (United Kingdom)
David W. McComb, Imperial College London (United Kingdom)
Tim S. Jones, Univ. of Warwick (United Kingdom)

Published in SPIE Proceedings Vol. 7052:
Organic Photovoltaics IX
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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