Koen Vandewal

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respectively. While much synthetic research has focused on the development of lower bandgap materials with absorption spectra that better match the solar irradiation spectrum, [ 1 , 2 , 5 ] new materials will also be required which maximize the photovoltage obtained from absorbed pho-tons. Many organic photovoltaic materials have optical bandgaps in the(More)
to effi ciently photogenerate charges. [ 2,3 ] However, they have low open-circuit voltages and typically cannot be made optically thick while maintaining high fi ll factors. [ 4,5 ] For comparison, the best silicon solar cell has a bandgap of 1.1 eV and an open-circuit voltage of 0.71 V, corresponding to a difference between the bandgap and qV oc of only(More)
The performance of organic photovoltaic (OPV) material systems are hypothesized to depend strongly on the intermolecular arrangements at the donor:fullerene interfaces. A review of some of the most efficient polymers utilized in polymer:fullerene PV devices, combined with an analysis of reported polymer donor materials wherein the same conjugated backbone(More)
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