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Boosting the photovoltaic performance of ladder-type heteroheptacene-based nonfullerene acceptors by incorporating auxochromic groups in the electron-rich core

Electron-rich CoreOrganic Charge-transfer CompoundEngineeringOrganic ElectronicsSolar PowerOrganic Solar CellApplied PhysicsOrganic SemiconductorConjugated PolymerOrganic ChemistryPhotovoltaic PerformanceAuxochromic GroupsChemistrySolar CellsPhotovoltaics