Despite the progress that has been made, the potential of triazine as a moiety in TADF emitter design still has not been fully realized. Firstly, one of the major factors affecting the device lifetime of OLEDs is the stability of the emitter. TADF compounds containing a TRZ acceptor have already demonstrated some potential for improved device lifetimes over their analogues containing acceptors like benzophenone or diphenyl sulfone. TRZ has long been recognized as a chemically stable moiety in the design of epoxy resin, polymers, and covalent TRZ frameworks (CTFs); however, OLED stability studies based on TRZ-functionalized TADF emitters remain limited. Studies that probed the influence of intramolecular hydrogen bonding, glass transition temperatures and charge mobility on the stability of TRZ-functionalized molecules and the impact on the device lifetime would be welcome.