Promoting Ruddlesden–Popper Perovskite Formation by Tailoring Spacer Intramolecular Interaction for Efficient and Stable Solar Cells

Xue Dong, Yiqun Li, Xiaobo Wang, Yipeng Zhou, Yuzhen Zhao, Wenqi Song, Shudong Xu, Fangmin Wang, Chenxin Ran, Lin Song, Zongcheng Miao