1,3-位不对称芘基聚集诱导蓝光材料的合成及有机发光二极管性质

1, 3-Asymmetric Pyrene-based Aggregation-induced Emission Blue Emitter with Organic Light-emitting Diode Properties

摘要: 有机蓝光材料是构建高性能有机发光二极管(Organic Light-emitting Diode, OLED) 器件的关键基础材料。本文报道了一类新型的1,3-不对称芘基聚集诱导蓝光材料(TPE-o2Ph) ，其固态下最大的发射峰位于460 nm，荧光量子产率为0.90。化合物TPE-o2Ph作为发光层制备的非掺杂/掺杂OLED蓝光器件表现出优异的电致发光(electroluminescent, EL) 性质，且非掺杂OLED器件的电致发光性能更优，其最大发光亮度(Luminance maximum, L_max)和外量子效率(External Quantum Efficiency, EQE)分别为12 560 cd m⁻²和2.34%。

Abstract: High-efficiency organic blue light-emitting materials are the key components to construct high-performance organic light-emitting diode (OLED) devices. In this research, a novel asymmetric pyrene-based blue emitter (TPE-o2Ph) with aggregation-induced emission (AIE) characteristics was synthesized. The pyrene-based AIE luminogen exhibits blue emission with the maximum emission peak (λ_em) at 460 nm and high fluorescence quantum yield of 0.90 in solid state. In addition, the compound TPE-o2Ph was utilized as the light-emitting layer for non-doped / doped blue OLED devices with excellent electroluminescence (EL) performance. Moreover, the non-doped OLED exhibits excellent EL performance, with a maximum luminescence (L_max) and the maximum external quantum efficiency (EQE) of 12560 cd m⁻² and 2.34%.