M1 中尾晃平君 (Kohei Nakao) のピリミジン系 TADF 発光材料の分子設計に関する「Significant Enhancement of Blue OLED Performances through Molecular Engineering of Pyrimidine-based Emitter」と題する論文が Wiley の Advanced Optical Materials (IF: 5.36) にアクセプトされ、オンライン出版されました。M1 中尾君をはじめ、TADF チーム、D2 小松君、M1 早坂、B4 大澤、おめでとうございます！
By K. Nakao, H. Sasabe*, R. Komatsu, Y. Hayasaka, T. Ohsawa, J. Kido*, Advanced Optical Materials, 2016, in press.
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.
