Wide-bandgap benzodithiophene-benzothiadiazole copolymers for highly efficient multi-junction polymer solar cells
- Duan, C.
- Furlan, A.
- van Franeker, H.
- Willems, R.
- Wienk, M.
- Janssen, R.
DOIAbstract
Novel wide-bandgap semiconducting polymers are designed and synthesized for multijunction polymer solar cell (PSC) applications. In single-junction PSCs, BDT-FBT-2T exhibits efficiencies exceeding 6.5% for active layer thicknesses between 90 and 250 nm, with the highest efficiency of 7.7% at 100 and 250 nm. This enables tandem PSCs to be created with an efficiency of 8.9
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