为了促进有机发光二极管(OLED)在各个领域中的应用,仍然期望在高亮度下获得具有出色效率的高性能蓝色OLED。在这里,我们专注于实现能够通过三重态-三重态capable灭(TTA)收集三重态的稳定且高效的纯蓝色OLED。选择了三个稠合的多环芳族取代基萘,pyr和蒽来构建菲并咪唑官能化的分子(1-3),其中comprised和蒽组成的分子在电致发光器件中显示出TTA特性。根据明智的分子设计,在发射器2的整齐薄膜中发现了57%的高光致发光量子效率。2的非掺杂OLED表现出纯蓝色发射,CIE坐标为(0.15,0.14),并证明最大外部量子效率(EQE)为5.11%,在300-3000 cd m -2的亮度下稳定EQE超过5%,在超高亮度下的EQE为4.76% -亮度为10000 cd m -2,最大亮度为54300 cd m -2。如此出色的设备性能在很大程度上负责了TTA的贡献。
Importance of monodentate mono-ligand designs in developing N-stabilized Pd catalysts for efficient ambient temperature C C coupling: Donor strengths and steric features
作者:Abiodun Omokehinde Eseola、Helmar Görls、Winfried Plass
DOI:10.1016/j.mcat.2019.110398
日期:2019.8
catalyst loading, 45 °C and within 15 min. On the other hand, the complexes with trans-bis-ligand coordination were inactive at ambient temperatures. Therefore, it was concluded that coordinative saturation, which results from implementing two or more ligand equivalents or use of polydentate ligands on palladium, should be strongly discouraged. Such saturation necessitates the undesirable and avoidable high
Highly efficient and stable pure blue nondoped organic light-emitting diodes at high luminance based on phenanthroimidazole-pyrene derivative enabled by triplei-triplet annihilation
To promote the application of organic light emitting diodes (OLEDs) in various areas, achieving high performance blue OLEDs with outstanding efficiencies at high luminance is still desired. Herein, we focus on realizing stable and highlyefficient pure blue OLED capable of harvesting triplets via triplet-triplet annihilation (TTA). Three fused polycyclic aromatic substituents, naphthalene, pyrene and
为了促进有机发光二极管(OLED)在各个领域中的应用,仍然期望在高亮度下获得具有出色效率的高性能蓝色OLED。在这里,我们专注于实现能够通过三重态-三重态capable灭(TTA)收集三重态的稳定且高效的纯蓝色OLED。选择了三个稠合的多环芳族取代基萘,pyr和蒽来构建菲并咪唑官能化的分子(1-3),其中comprised和蒽组成的分子在电致发光器件中显示出TTA特性。根据明智的分子设计,在发射器2的整齐薄膜中发现了57%的高光致发光量子效率。2的非掺杂OLED表现出纯蓝色发射,CIE坐标为(0.15,0.14),并证明最大外部量子效率(EQE)为5.11%,在300-3000 cd m -2的亮度下稳定EQE超过5%,在超高亮度下的EQE为4.76% -亮度为10000 cd m -2,最大亮度为54300 cd m -2。如此出色的设备性能在很大程度上负责了TTA的贡献。