Xiangnan Sun, Xitao Li, Haotong Li, Yao Li, Siqi Li, Yan-Zhen Zheng*, Xia Tao*, A facile and broadly applicable CdBr2-passivating strategy for halide migration-inhibiting perovskite films and high-performance solar cells, J. Mater. Chem. A, DOI: 10.1039/d1ta03223b