Nanotechnology Innovation Centre, Health Platform, Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa.
Department of Chemistry, University of South Africa, Private Bag X6, Florida, Roodepoort 1710, South Africa.
Molecules. 2023 Jul 7;28(13):5272. doi: 10.3390/molecules28135272.
Blue emissions in organic light-emitting diodes (OLEDs) are essential for their application in solid-state lighting and full-colour flat panel displays. On the other hand, high-power blue emitters are still uncommon, especially those that can achieve the Commission Internationale de l'Eclairage (CIE, X, Y) coordinates of (0.14, 0.08) in the National Television System Committee (NTSC) blue standard and have high external quantum efficiencies (EQE) of more than 5% because their molecular design presents an enormous challenge. Therefore, creating effective, stable, pure, and deep blue fluorescent materials is vital. Here, it is addressed how useful blue fluorescent Zn (II) complexes are for making organic light-emitting diodes (OLEDs). Utilizing Zn (II) complexes is appealing because of their favourable luminous characteristics, acceptance and mobility, and affordability. This mini-review article aims to provide an overview of Zn (II) complexes that emit blue fluorescent light and have been reported since 2018, while highlighting the unique qualities that make them appropriate OLED materials.
有机发光二极管（OLED）中的蓝色发射对于其在固态照明和全彩平板显示器中的应用至关重要。另一方面，高功率蓝色发射器仍然不常见，特别是那些能够在国家电视系统委员会（NTSC）蓝色标准中达到（0.14,0.08）的 CIE（国际照明委员会）坐标，并且具有超过 5%的高外量子效率（EQE）的发射器，因为它们的分子设计提出了巨大的挑战。因此，创造有效、稳定、纯净和深蓝光荧光材料至关重要。本文讨论了蓝色荧光 Zn（II）配合物在制造有机发光二极管（OLED）中的应用。由于其发光特性、可接受性和迁移率以及价格合理，因此使用 Zn（II）配合物很有吸引力。本文综述了自 2018 年以来报道的发射蓝色荧光的 Zn（II）配合物，重点介绍了使它们成为合适的 OLED 材料的独特品质。
