Solvent modification to suppress halide segregation in mixed halide perovskite solar cells. - Li, Yaoyao; Song, Dandan; Meng, Juan; Dong, Jie; Lu, Yao; Huo, Xiaomin; Maqsood, Ayman; Song, Yuhang; Zhao, Suling; Qiao, Bo; Xu, Zheng (Journal of Materials Science, 2020)