title: Multiphosphine-Oxide Hosts for Ultralow-Voltage-Driven True-Blue Thermally Activated Delayed Fluorescence Diodes with External Quantum Efficiency beyond 20.
abstract: 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.
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and School of Chemistry and Material Science, Heilongjiang University, 74 Xuefu Road, Harbin, 150080, P. R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and School of Chemistry and Material Science, Heilongjiang University, 74 Xuefu Road, Harbin, 150080, P. R. China.
authors.forename: Dongxue
authors.initials: D
authors.lastname: Ding
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and School of Chemistry and Material Science, Heilongjiang University, 74 Xuefu Road, Harbin, 150080, P. R. China.|Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wei
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and School of Chemistry and Material Science, Heilongjiang University, 74 Xuefu Road, Harbin, 150080, P. R. China.
authors.forename: Fuquan
authors.initials: F
authors.lastname: Han
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and School of Chemistry and Material Science, Heilongjiang University, 74 Xuefu Road, Harbin, 150080, P. R. China.|Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.affiliation: Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
keywords: electroactivity; fluorescence diodes; phosphine oxide hosts; spatial function distribution; true-blue emission