Hole transportation and defect passivation properties at perovskite/SAHTM interface: the effect of heteroatom group and alkyl chain in self-assembled phosphonic-acid-carbazole derivatives

self-assembled hole transporting materials (SAHTMs) are essential for enhancing the performance of perovskite solar cells (PSCs). However, the improvement of both the hole transportation and defect passivation abilities of SAHTMs...