Knöller, Julius A.Sönmez, BurcuMatulaitis, TomasGupta, Abhishek KumarZysman-Colman, EliLaschat, Sabine2024-06-172024-06-1720241359-73451364-548X1892339706http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-145478http://elib.uni-stuttgart.de/handle/11682/14547http://dx.doi.org/10.18419/opus-14528Modification of an unsymmetric B,O,N-doped aromatic core with peripheral mesogenic units triggers self-assembly into a columnar hexagonal mesophase, which is stable between 22 and 144 °C. The columnar assembly is preserved in a glassy state below 22 °C. The B,O,N-doped mesogen displays narrowband sky-blue multiresonance thermally activated delayed fluorescence (MR-TADF) under diluted conditions and bright excimer emission in condensed phase. Our combined experimental and theoretical approach provides insight into the development of strongly aggregating liquid crystalline MR-TADF emitters.eninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/3.0/540article2024-04-25