Synthesis and Studies of High-Triplet-Energy Materials for Blue OLEDs (BLUEOLEDS)

 

Project no.: TAP LLT-2/2017

Project description:

Highly-efficient blue OLEDs with industry-standard device lifetimes have to be realized to fully open the potential of OLEDs. Recently blue thermally activated delayed fluorescence (TADF) and phosphorescence emitters (having values of triplet levels higher than 2.8 eV) were developed application of which can allow to achieve the internal quantum efficiency of blue OLEDs close to 100 %. To fabricate efficient blue TADF OLEDs and phosphorescent OLEDs (PhOLEDs) avoiding energy loses through triplet levels of the host and charge-transporting layers which are necessarily included in OLED structures, high-triplet-energy stable materials with the effective transport of either holes or electrons or both have to be developed and investigated. The overall objective of the project is developing and investigation of high-triplet-energy charge-transporting materials as the hosts and functional layers for high-efficiency blue organic light-emitting devices based on either thermally activated delayed fluorescence or phosphorescent emitters.

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Project funding:

Interngovernmental programme administrated by Research Council of Lithuania: Lithuania–Latvia–China (Taiwan)


Project results:

High efficiency organic semiconductor materials with high triplet-energy values, incland and good charge-transporting properties will be developed, their properties will be studied materials, fabrication and characterization of l efficient and stable ight-emitting electroluminescent devices will be performed using the most promising materials.

Period of project implementation: 2017-01-01 - 2019-12-31

Project coordinator: Kaunas University of Technology

Project partners: Tunghai University, University of Latvia

Head:
Juozas Gražulevičius

Duration:
2017 - 2019

Department:
Department of Polymer Chemistry and Technology, Faculty of Chemical Technology

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