Yin, Q., Gao, X., Yu, J., Kan, L., Sun, J., Zeng, R., Han, F., Zhu, H., Pei, S., Zhu, L., Xu, S., Zhang, Y., Liu, F., Zhang, M. (2026). Polarized Heterojunction in a Doubly Doped Layer‐by‐Layer Structure to Obtain an Organic Photovoltaic Device of 20.5% Efficiency. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202521265