Dipolar Carbazole Ammonium for Broadened Electric Field Distribution in High-Performance Perovskite Solar Cells - Jialin Wang; Likai Zheng; Hak-Beom Kim; Han He; Sanlong Wang; Felix T. Eickemeyer; Yimhyun Jo; Ying Zhao; Mingyang Wei; Jaeki Jeong; Michael Grätzel; Xiaodan Zhang (Journal of the American Chemical Society, 2025)