M1 中尾君（Kohei Nakao）の Advanced Optical Materials (IF: 5.36) の “Significant Enhancement of Blue OLED Performances through Molecular Engineering of Pyrimidine-based Emitter” と題する論文が2017年2月の Most downloaded article の１位に選ばれました。M1 中尾、および、TADF チーム、D2 小松、M1 早坂、B4 大澤、おめでとう！
Abstract: Although pyrimidine-based emitters are one of the most promising classes of compounds, a structure-property relationship for an effective molecular design strategy has not yet been elucidated. Here we developed three types of blue pyrimidine emitters for high-performance thermally activated delayed fluorescence (TADF) organic light-emitting devices (OLEDs). We used 2,4,6-triphenylpyrimidine (TPPM) as an acceptor, and tri- or penta-substituted acridine (Ac) as a donor unit for the blue TADF emitters. We investigated the effects of the nitrogen position on the photophysical properties and OLED performances, and developed a blue device with a high external quantum efficiency close to 25%. The device performances are among the best so far for blue TADF OLEDs.
