New generation of high-efficiency OLEDs using deep red and near-infrared emitters
Thermally activated delayed fluorescence (TADF) is a mechanism for enhancing the efficiency of organic light-emitting devices (OLEDs). The devices using this mechanism are known as third-generation OLEDs and have internal quantum efficiencies approaching 100 %. So far, little is known about materials based on TADF emitting deep red and near-infrared light. These materials could find use in night vision displays, sensors and information-secured displays. The EU-funded TADFNIR project will use rational methods of organic material synthesis to produce TADF emitters in these frequencies. The project has set out to solve three main challenges with current generation OLED TADF emitters: efficiency roll-off, short lifetime and low purity of emission colour.
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