Efficient Light-Emitting Devices Based on Platinum-Complexes-Anchored Polyhedral Oligomeric Silsesquioxane Materials

摘要: The synthesis, photophysical, and electrochemical characterization of macromolecules, consisting an emissive platinum complex carbazole moieties covalently attached to a polyhedral oligomeric silsesquioxane (POSS) core, is reported. Organic light-emitting devices based on these POSS materials exhibit peak external quantum efficiency ca. 8%, which significantly higher than that the analogous with physical blend complexes polymer matrix, they represent noticeable improvement in device solution-processable phosphorescent excimer devices. Furthermore, ratio monomer excimer/aggregate electroluminescent emission intensity, as well efficiency, increases moiety presence macromolecules decreases.