Development of Efficient Stable and Inexpensive Deep Red and Near Infrared OLED...
Development of Efficient Stable and Inexpensive Deep Red and Near Infrared OLEDs Based On AIE Active Thermally Activated Delayed Fluorescence Emitters.
Thermally activated delayed fluorescent (TADF) emitters offer an exciting opportunity to produce efficient organic light-emitting diodes (OLEDs) by overcoming the spin-statistics limit of fluorescent emitters. Although, TADF-OLEDs...
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Información proyecto DR NIR TADF-OLEDs
Duración del proyecto: 30 meses
Fecha Inicio: 2021-04-21
Fecha Fin: 2023-11-01
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Descripción del proyecto
Thermally activated delayed fluorescent (TADF) emitters offer an exciting opportunity to produce efficient organic light-emitting diodes (OLEDs) by overcoming the spin-statistics limit of fluorescent emitters. Although, TADF-OLEDs have proven to be very successful in the visible spectral region, the development of efficient TADF emitters remains challenging for the deep-red (DR, 650-700 nm) and Near-Infrared NIR (< 700 nm) region due to significantly slower radiative decay rates and faster non-radiative decay rates. Such DR/NIR emitting OLEDs can enable new applications in bioimaging, photodynamic therapy, night vision technology, information-secured displays, and optical communication. We propose to develop efficient and inexpensive DR/NIR OLEDs based on purely organic TADF-emitters. Our design consists of a yet unexplored aggregation-induced emission (AIE)-active boron diiminate (BDI) electron acceptor coupled with suitably strong dendritic electron donors. The use of highly efficient AIE-active emitters will significantly enhance the brightness of the emitter by suppressing non-radiative decay, thereby leading to a much-improved efficiency in the device.