Periodic Reporting for period 1 - TADFORCE (Strengthening and survey beyond the knowledge of the TADF emitters as materials for superefficient OLED devices)
Periodo di rendicontazione: 2015-05-01 al 2017-04-30
The high demand for flexible OLEDs will increase the need for very expensive and rare iridium. The TADFORCE project aims to explore exciplex emitters and thermally activated delayed fluorescence (TADF) in OLEDs i) to replace currently used Ir complexes, and ii) to show how to easily tune emitter, resulting in reduced production cost, especially blue, where Ir-based emitters fail.
The main research goal of the multi-disciplinary TADFORCE project is to explore CT and exciplex emitters and their application in OLED devices by training Experienced Researcher through joint research in chemical, physical and material science in both academia and industry. The ER will gain experience in conducting research in a multidisciplinary environment to produce important data in this new OLED field to enable the development, modeling, and tailoring of TADF OLED devices, which are at the forefront of new OLED research and development.
In this project I was responsible for designing, fabricating and characterization of OLED devices, as well as searching for new compounds and new exciplex systems for analysis. Thanks to my wide knowledge of electrochemical processes and spectroscopic analysis I was able to use this in a search for new co-compounds for exciplex layers. In my project I was able to design and form exciplex based OLED devices, which had 100% interconversion. I was able to demonstrate that an exciplex emitter can yield efficient OLEDs, >19% EQE (almost 100% efficiency). In conclusion, I was able to form several highly efficient, heavy atom free OLED devices based on TADF and exciplex phenomena.