Synthesis of statistical carbazole–fluorene–thiophene–benzothiadiazole copolymers and their investigation in organic solar cells

Abstract

A carbazole-to-fluorene ratio in the molecular structure of the title polymers was found to have a strong effect on the morphology of their composites with the fullerene derivatives ([60]PCBM and [70]PCBM) and their photovoltaic performance.