| Abstract [eng] |
The aim of this work was development of new stable materials for the use in organic optoelectronic devices. In order to achieve the aim of the thesis, the following objectives were raised: • Synthesis, characterization and study of the properties and applicability in OLEDs of star-shaped triazine derivatives. • Investigation of meta-conjugated derivative of 1,3,5-triazine and carbazole as potential thermally activated delayed fluorescence emitter. • Synthesis, characterization and investigation of structure-property relationship of carbazole and benzonitrile derivatives. • Synthesis and comparative study of the properties of isomeric derivatives of 9,9-dimethyl-9,10-dihydroacridine and benzonitrile. • Synthesis, characterization and investigation of photovoltaic properties of new derivative of benzothiadiazole having both donor and acceptor substituents. Four new bipolar star-shaped derivatives of carbazole and 2,4,6-triphenyl-1,3,5-triazine were designed, synthesized and characterized. Compounds are applicable as emitters in OLEDs. Three new blue-emitting isomeric derivatives of 9,9-dimethyl-9,10-dihydroacridine and benzonitrile were prepared and characterized. It was found that ortho-linkage is responsible for the high lying triplet state, as well as the least polarity sensitive charge transfer state among the isomers, resulting in the most efficient thermally activated delayed fluorescence. Compounds are applicable as emitters in OLEDs. |
