30. Xing Chen ,Guoyun Meng, Guanming Liao, Florian Rauch, Jiang He, Alexandra Friedrich, Todd Marder, Nan Wang, Pangkuan Chen, Suning Wang, Xiaodong Yin*, Highly Emissive 9‐Borafluorene Derivatives: Synthesis, Photophysical Properties, and Device Fabrication, Chem. Eur. J. 2021, 10.1002/chem.202005185