Realizing Phase-Pure (PEA)2FAPb2I7 Perovskite Films by Inhibiting 3D Phase Formation - Liang, Yuchao; Liu, Fangzhou; Xie, Xixi; Ma, Yingzhuang; Guan, Yan; Yu, Wenjin; Zou, Yu; Zhang, Lingling; Zhang, Xian; Zhang, Yangyang; Li, Bohan; Wu, Cuncun; et al. (ADVANCED FUNCTIONAL MATERIALS, 2024)