White organic light-emitting diodes (OLEDs) are rarely used in commercial lighting devices, apparently due to their inefficient and unstable performance. We propose to address this problem by developing white “crystalline” OLEDs (COLEDs) that incorporate crystalline thermally activated delayed fluorescence (TADF) emitters or hosts. TADF emitters will be used not only for their ability to harvest 100% electrical energy but also because they are eco-friendly materials. Crystalline organic semiconductors with highly oriented transition dipole moments, superior charge carrier mobilities, and better morphological stability will be used to develop state-of-the-art white COLEDs.
Project funding:
Projects funded by the Research Council of Lithuania (RCL), Projects carried out by researchers’ teams
Project results:
The main scientific results of COLED are expected as follows:
· synthesis of new materials;
· methodology of preparation of films based on ordered TADF molecules using crystalline organic semiconductors;
· data sets based on photophysical, thermal, charge-transporting, and electroluminescent measurements for new materials and devices;
· interpretation of photophysical, thermal, charge-transporting, charge-injecting and electroluminescent properties of new materials and devices.
Such scientific results obtained in the frame of the COLED project will be published in at least five articles in a peer-reviewed journal with an impact factor (IF) higher than 4 on the Clarivate Analytics (formerly Thomson Reuters) Web of Science database).
Period of project implementation: 2024-09-02 - 2027-08-31
Project coordinator: Kaunas University of Technology
Project partners: Uppsala University, Lviv Polytechnic National University
