Efficient furan-bridged dibenzofulvene-triphenylamine hole transporting materials for perovskite solar cells - Wu, Nan; Zhang, Xianfu; Liu, Xuepeng; Wang, Ying; Han, Mingyuan; Ghadari, Rahim; Wu, Yahan; Ding, Yong; Cai, Molang; Dai, Songyuan (Materials advances, 2023)