On the basis of a D-π-A structural strategy incorporating diphenylamine as an electron-donor and 1,3,5-triazine as an electron-acceptor with a short benzene π-conjugated feature, 4-(4,6-diphenoxy-1,3,5-triazin-2-yl)-N,N-diphenylaniline (POTA), a novel blue fluorophor with high triplet energy level has been designed and synthesized to achieve high performance single-emitting-layer (single-EML) fluorescence and phosphorescence hybrid white organic light-emitting diodes (F−P hybrid WOLEDs). POTA exhibits efficient blue electrofluorescence and excellent host features for green and red phosphorescent devices. The single-EML RGB F−P hybrid WOLED based on POTA and green/red complexes shows a maximum total power efficiency of 59.8 ± 1.0 lm W−1 and a maximum total external quantum efficiency of 24.7 ± 0.7%, representing the highest efficiencies among single-EML RGB WOLEDs. Moreover, these performances are comparable with multiple-EML RGB WOLEDs even based on p-i-n structures, providing verification of the high performance and simple structure of single-EML RGB F−P hybrid WOLEDs.

报告人简介：肖静，2007年毕业于北京交通大学光学专业，获得理学博士学位，中国科学院理化技术研究博士后，现为泰山学院教授，物理系主任。任2018-2022年教育部高等学校物理学专业教学指导委员会华东地区工作委员会委员，2018-2022年教育部高等学校大学物理专业教学指导委员会华东地区工作委员会委员；山东省青年人才创新协会新一代信息技术专委会秘书长；山东省光学工程学会理事，山东省能源行业节能科技专家。兼任苏州大学、南京邮电大学、青岛大学等高校的研究生导师。2017年获山东省高等学校科学技术奖一等奖（首位）；2019年获1958泰山学人领军人才称号；2019年作为团队带头人的“光电器件研究团队”入选山东省首批科研创新团队；十三五省高校重点实验室“绿色合成与功能材料”的学科带头人。