Researchers have developed a novel analytical model that reveals the kinetics of exciton dynamics in thermally activated delayed fluorescence (TADF) materials.

Organic light-emitting diodes, or OLEDs, are photoluminescence devices that use organic compounds to generate light. Compared to traditional LEDs, OLEDs are more efficient, can be made into ultra-thin, flexible materials, and deliver higher dynamic range in image quality. To continue improving OLED performance, researchers around the world are studying the fundamental chemistry and physics that drive the technology.

At Kyushu University, a research team has developed a new analytical model that captures the kinetics of exciton dynamics in OLED materials. Their findings, published in Nature Communications, could help extend the lifetime of OLED devices and speed up the development of more advanced, efficient materials.

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