Regensburg 2025 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 29: Organic Electronics and Photovoltaics III
CPP 29.3: Talk
Wednesday, March 19, 2025, 15:30–15:45, H38
Extending the design space of carbazole-based TADF emitters: From photophysical insights to OLED performance — •Karolis Leitonas1, Łukasz Łapok2, Sebastian Schellhammer1, and Sebastian Reineke1 — 1Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden — 2Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Kraków, Poland
Although organic light-emitting diodes (OLEDs) dominate the market for mobile displays, e.g., in smartphones, designing efficient and long-lasting blue pixels remains challenging. Enhancing OLED efficiency requires effective singlet and triplet exciton harvesting - a key mechanism to minimize energy losses via non-radiative decay. Emitter materials exhibiting thermally activated delayed fluorescence (TADF) can achieve up to 100 % internal quantum efficiency (IQE) providing a promising approach for the design of efficient OLEDs. Still, their potential is not yet fully exploited due to incomplete insights into the underlying structure-property relationships and chemical design challenges. We discuss the photophysical properties of new emitters extending the class of carbazole-based TADF emitters introduced by Adachi et al. [1] and analyze their application in OLEDs.
[1] Uoyama et al. Nature 2012
Keywords: Organic electronics; Emitter; TADF; OLED; Luminescence