Yang, Z., Chen, Y., Chen, Z., Liao, S., Li, X., Liao, S., Liu, D., Sun, G., Li, Z., Jiang, S., Hu, J., Fu, Y., Nie, X., Yang, G., Cheng, X., Wang, T., Li, M., Li, M., Kido, J., Su, S. (2026). The Important Role of Carbonyl in Accelerating Reverse Intersystem Crossing for Selenium‐Based Organoboron Narrowband Blue Emitters. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.5497802