Small molecular donor materials based on β–β-bridged BODIPY dimers with a triphenylamine or carbazole unit for efficient organic solar cells

BM as guest acceptor is added to the binary host ZMH-1:IDT-TC and ZMH-2:IDT-TC, the ternary OSCs based on ZMH-1 and ZMH-2 reach PCEs of 13.70% and 12.71%, respectively.