A boron, nitrogen, and oxygen doped π-extended helical pure blue multiresonant thermally activated delayed fluorescent emitter for organic light emitting diodes that shows fast k_RISC without the use of heavy atoms

Rangani Wathsala Weerasinghe, Subeesh Madayanad Suresh, David Luke Starkey Hall, Tomas Matulaitis, Alexandra Martha Zoya Slawin, Stuart Warriner, Yi-Ting Lee, Chin-Yiu Chan^*, Youichi Tsuchiya^*, Eli Zysman-Colman^*, Chihaya Adachi^*

^*Corresponding author for this work