Zhang Gong, Zhang Wei
School of Material Science and Engineering, Henan University of Technology, Zhengzhou, 450001, P. R. China.
State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.
Chemistry. 2025 Feb 12;31(9):e202404020. doi: 10.1002/chem.202404020. Epub 2024 Dec 18.
Circularly polarized luminescence (CPL) has attracted tremendous attention because of its significant application prospect across multiple fields of three-dimensional display, data storage, and information encryption. Chirality and luminescence are two necessary prerequisites for the generation of CPL. However, controlling these two factors simultaneously in a rational manner remains a challenge. Herein, we highlight the recent advances on the rational generation and regulation of CPL through the new concept, named matching rules, mainly including fluorescence-selective absorption, circularly polarized fluorescence energy transfer, and chiral communication between excited state and ground state. An important commonality among these strategies is that they need a good overlap of the corresponding spectra between the luminescent part (fluorescence, phosphorescence, or CPL) and the chiral part (organic, inorganic, or organic-inorganic hybrid materials), which can be contactless and separate. Different from most previous studies, no covalent or noncovalent interactions between the two parts are required, which makes them more facile and convenient. Finally, we summarize the main advantages of these strategies and the current challenges. We expect this concept to offer insightful and novel understanding and inspiration on CPL generation and regulation.
圆偏振发光（CPL）因其在三维显示、数据存储和信息加密等多个领域的重要应用前景而备受关注。手性和发光是产生CPL的两个必要前提条件。然而，以合理的方式同时控制这两个因素仍然是一个挑战。在此，我们重点介绍了通过一种名为匹配规则的新概念在CPL的合理产生和调控方面的最新进展，主要包括荧光选择性吸收、圆偏振荧光能量转移以及激发态与基态之间的手性通信。这些策略的一个重要共性是，它们需要发光部分（荧光、磷光或CPL）和手性部分（有机、无机或有机-无机杂化材料）之间相应光谱有良好的重叠，且这种重叠可以是非接触式的和分离的。与大多数先前的研究不同，这两个部分之间不需要共价或非共价相互作用，这使得它们更加简便易行。最后，我们总结了这些策略的主要优点和当前面临的挑战。我们期望这个概念能为CPL的产生和调控提供深刻而新颖的理解与启发。
