{The use of|The usage of} thermally activated delayed fluorescence emitters and emitters that show preferential horizontal orientation of their transition dipole are two emerging {strategies|methods|techniques|approaches|tactics} to {enhance|improve|boost} the efficiency of organic light-emitting diodes. We present {the first|the very first|the initial} {example|instance} of a liquid crystalline multi-resonance thermally activated delayed fluorescent emitter, DiKTaLC. The neat film of DiKTaLC shows a photoluminescence quantum yield of 41%, a singlet-triplet {energy|power} gap, ΔEST, of 0.20 eV, {and a|along with a|as well as a|plus a|and also a|in addition to a} delayed lifetime, τd, of 70.{2|two} µs. The compound possesses a nematic discotic liquid crystalline phase {between|in between|among|amongst|involving} 80 °C and 110 °C. {More|Much more|A lot more|Far more|Additional|Extra} importantly, the transition dipole moment {of the|from the|in the|on the|with the|of your} spin-coated film shows preferential horizontal orientation, with an anisotropy {factor|aspect|element|issue}, a, of 0.26. We {thus|therefore|hence|as a result} demonstrate for {the first|the very first|the initial} time how self-assembly of a liquid crystalline TADF emitter can {lead to|result in|bring about|cause} the so-far elusive {control|manage|handle} {of the|from the|in the|on the|with the|of your} orientation {of the|from the|in the|on the|with the|of your} transition dipole in solution-processed films, {which will|that will} be of relevance for high-performance solution-processed organic light-emitting diodes. 854515-52-9 Formula Price of 150114-97-9 PMID:23833812
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