Multiphosphine-Oxide Hosts for Ultralow-Voltage-Driven True-Blue Thermally Activated Delayed Fluorescence Diodes with External Quantum Efficiency beyond 20%

被引:159
作者
Zhang, Jing [1 ,2 ]
Ding, Dongxue [1 ,2 ]
Wei, Ying [1 ,2 ,3 ,4 ]
Han, Fuquan [1 ,2 ]
Xu, Hui [1 ,2 ,3 ,4 ]
Huang, Wei [3 ,4 ]
机构
[1] Heilongjiang Univ, Minist Educ, Key Lab Funct Inorgan Mat Chem, 74 Xuefu Rd, Harbin 150080, Peoples R China
[2] Heilongjiang Univ, Minist Educ, Sch Chem & Mat Sci, 74 Xuefu Rd, Harbin 150080, Peoples R China
[3] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Key Lab Flexible Elect KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
[4] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Inst Adv Mat, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
关键词
LIGHT-EMITTING-DIODES; HIGH TRIPLET ENERGY; DEVICES; EXCITON; ELECTROLUMINESCENCE; LUMINESCENCE; COMPLEX; YELLOW; CHARGE; STATE;
D O I
10.1002/adma.201502772
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Highly efficient low-voltage-driven true-blue thermally activated delayed fluorescence diodes are realized through employing a tri-phosphine oxide host (2,2',4-tris(di(phenyl)phosphoryl)-diphenylether (DPETPO)) with a record external quantum efficiency of 23.0% and the lowest onset voltage of 2.8 V to date.
引用
收藏
页码:479 / +
页数:8
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