工學院英文書報討論　──　英文演講公告
●　主題：　Pure Organic Emitters for Organic Light-Emitting Devices with Record-High Efficiency
●　摘要：　Highly efficient organic emitters are in urgent demand for solid-state lighting and full-color displays, especially for organic light-emitting diodes (OLEDs). In this talk, we are going to introduce OLED structure and the design and synthesis of molecules with thermally activated delayed fluorescence (TADF). Most our materials, they exhibited excellent photoluminescence quantum yields of 79~100% with small ΔEST values, fast reverse intersystem crossing, and high horizontal dipole ratios (Θ// = 83~88%) in thin films leading to the enhancement of device light outcoupling. Consequently, a green OLED showed a high average external quantum efficiency (EQE). The highest device efficiency (nearly 40%) appears record-breaking among TADF-based OLEDs to date.
●　講者：　吳典霖教授，清華大學化學系
●　主持：　魯才德教授，清華大學生物醫學工程研究所
●　時間：　2021年10月05日（星期二）下午 13:20 - 15:20
●　地點：　Microsoft Teams (連結)