Zhang Rong, Gao Jing, Li Nuomin, Gao Caiyun, Zhang Chunliang, Wang Hongjiang, Sun Feiyi, Yang Tianyu
The Ninth Medical Center of Chinese PLA General Hospital, Beijing, 100101, P. R. China.
Army Medical University, Chongqing, 400038, P. R. China.
Small. 2025 Feb;21(8):e2409541. doi: 10.1002/smll.202409541. Epub 2025 Jan 31.
Circularly polarized light-emitting devices have found extensive application prospects in 3D displays and optoelectronic information. Among them, circularly polarized organic light-emitting diodes (CP-OLED), as a rising star of circularly polarized light-emitting devices, achieved good research results. However, the preparation of CP-OLED with a high electroluminescence asymmetry factor and high external quantum efficiency is a hot and difficult research topic. At present, the approaches for achieving circularly polarized electroluminescence via CP-OLED are: 1) Using chiral materials as luminescent materials, 2) Utilizing chiral functional materials. This review summarizes recent methodologies used for manufacturing CP-OLED. It focuses on the construction strategies and applications of chiral functional materials (chiral host materials, chiral hole transport materials, and chiral electron transport materials) in CP-OLED. While challenges such as complex chiral design and material interactions persist, advancements in material design and device architecture propel CP-OLED forward. These developments promise to elevate CP-OLED as a focal point in optoelectronic research, facilitating high-performance, circularly polarized luminescence (CPL)-capable devices for practical applications.
圆偏振发光器件在3D显示和光电信息领域有着广泛的应用前景。其中，圆偏振有机发光二极管（CP-OLED）作为圆偏振发光器件中的一颗新星，取得了良好的研究成果。然而，制备具有高电致发光不对称因子和高外量子效率的CP-OLED是一个热门且具有挑战性的研究课题。目前，通过CP-OLED实现圆偏振电致发光的方法有：1）使用手性材料作为发光材料，2）利用手性功能材料。本文综述了近期用于制造CP-OLED的方法。它重点关注手性功能材料（手性主体材料、手性空穴传输材料和手性电子传输材料）在CP-OLED中的构建策略和应用。尽管存在复杂的手性设计和材料相互作用等挑战，但材料设计和器件结构的进步推动了CP-OLED的发展。这些进展有望将CP-OLED提升为光电研究的焦点，促进具有高性能、能够实现圆偏振发光（CPL）的器件用于实际应用。
