Fan Tianwen, Xu Linxian, Tang Hao, Wang Lingyun, Cao Derong
State Key Laboratory of Luminescent Materials and Devices, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
School of Pharmacy, Guangdong Medical University, Dongguan 523808, China.
Nanomaterials (Basel). 2025 Jul 7;15(13):1053. doi: 10.3390/nano15131053.
The application of organic light-emitting diodes (OLEDs) has become widespread, with polarizers commonly employed to mitigate the influence of external light sources on OLED displays. However, when the light signal generated by the OLED emissive layer passes through the polarizer, approximately 50% of the light energy is inevitably lost. Circularly polarized luminescent (CPL) molecules, capable of emitting specific left- or right-handed circularly polarized light, theoretically enable 100% light energy utilization in corresponding OLED devices (CP-OLEDs). With this breakthrough, CPL mechanisms exhibit significant potential for applications in data storage, bioimaging, and 3D displays. In this review, we focus on molecules constructed via a chiral perturbation strategy, analyzing their CPL generation mechanisms and molecular engineering principles. The relationship between these molecular structures and OLED performance is systematically analyzed and summarized. Finally, we critically address current challenges in developing both CPL active materials and devices based on the chiral perturbation strategies, while providing perspectives on future developments and potential challenges in this field.
有机发光二极管（OLED）的应用已十分广泛，偏振器通常用于减轻外部光源对OLED显示器的影响。然而，当OLED发光层产生的光信号通过偏振器时，约50%的光能不可避免地损失。能够发射特定左旋或右旋圆偏振光的圆偏振发光（CPL）分子，理论上可使相应的OLED器件（CP - OLED）实现100%的光能利用。凭借这一突破，CPL机制在数据存储、生物成像和3D显示应用中展现出巨大潜力。在本综述中，我们聚焦于通过手性扰动策略构建的分子，分析其CPL产生机制和分子工程原理。系统地分析和总结了这些分子结构与OLED性能之间的关系。最后，我们批判性地探讨了基于手性扰动策略开发CPL活性材料和器件时当前面临的挑战，同时展望了该领域未来的发展及潜在挑战。
