Highly Polar Molecules in Electron Transport Layers Achieve >20% Efficiency and Excellent Scalability in Binary Organic Solar Cells via Enhanced Charge Extraction. - Deng, Jiawei; Zhang, Youhui; Zeng, Rui; Zhu, Lei; Liu, Jiabin; Zhang, Shijing; Pei, Yaqi; Xie, Jiaping; Tan, Senke; Han, Fei; Liang, Huihui; Ai, Zhifu; et al. (Advanced Functional Materials, 2026)