Solution processed polymer tandem solar cell using efficient small and wide bandgap polymer:fullerene blends.

Gevaerts, Veronique S; Furlan, Alice; Wienk, Martijn M; Turbiez, Mathieu; Janssen, René A J · Adv Mater · 2012

basic_science · Level V

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Abstract

Solution processed polymer tandem solar cells that combine wide and small bandgap absorber layers reach a power conversion efficiency of 7% in a series configuration. This represents a 20% increase compared to the best single junction cells made with the individual active layers and shows that the tandem configuration reduces transmission and thermalization losses in converting sunlight.

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