title: Controlling Synergistic Oxidation Processes for Efficient and Stable Blue Thermally Activated Delayed Fluorescence Devices.
abstract: Efficient sky-blue organic light-emitting diodes (OLEDs) employing thermally activated delayed fluorescence (TADF) display a three orders of magnitude increase in lifetime, which is superior to those of controlled phosphorescent OLEDs used in this study. The combination of electro-oxidation and photo-oxidation of the TADF emitters in their triplet excited-states is suppressed through molecule design and device engineering.
authors.affiliation: Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka, 819-0395, Japan.
authors.forename: Lin-Song
authors.initials: LS
authors.lastname: Cui
authors.affiliation: Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, P. R. China.
authors.forename: Ya-Li
authors.initials: YL
authors.lastname: Deng
authors.affiliation: Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka, 819-0395, Japan.
authors.forename: Daniel Ping-Kuen
authors.initials: DP
authors.lastname: Tsang
authors.affiliation: Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, P. R. China.
authors.forename: Zuo-Quan
authors.initials: ZQ
authors.lastname: Jiang
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China. qishengzhang@zju.edu.cn.
authors.forename: Qisheng
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, P. R. China. lsliao@suda.edu.cn.
authors.forename: Liang-Sheng
authors.initials: LS
authors.lastname: Liao
authors.affiliation: Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka, 819-0395, Japan. adachi@cstf.kyushu-u.ac.jp.
authors.forename: Chihaya
authors.initials: C
authors.lastname: Adachi
keywords: OLEDs; TADF; degradation mechanisms; lifetime; synergistic oxidation