2.5% efficient organic plastic solar cells
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- 5 February 2001
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 78 (6) , 841-843
- https://doi.org/10.1063/1.1345834
Abstract
We show that the power conversion efficiency of organic photovoltaic devices based on a conjugated polymer/methanofullerene blend is dramatically affected by molecular morphology. By structuring the blend to be a more intimate mixture that contains less phase segregation of methanofullerenes, and simultaneously increasing the degree of interactions between conjugated polymer chains, we have fabricated a device with a power conversion efficiency of 2.5% under AM1.5 illumination. This is a nearly threefold enhancement over previously reported values for such a device, and it approaches what is needed for the practical use of these devices for harvesting energy from sunlight.Keywords
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