| 基于β-异靛蓝骨架的圆偏振发光材料的发现、发展与展望 |
| Discovery, development, and perspectives of circularly polarized luminescent materials based on β-isoindigo skeletons |
| 作者 | 单位 | E-mail | | 毕羡 | 杭州师范大学材料与化学化工学院, 有机硅化学及材料技术教育部重点实验室, 杭州 311121 | | | 王思斯 | 杭州师范大学材料与化学化工学院, 有机硅化学及材料技术教育部重点实验室, 杭州 311121 | 20223034@hznu.edu.cn | | 张金月 | 杭州师范大学材料与化学化工学院, 有机硅化学及材料技术教育部重点实验室, 杭州 311121 | | | 彭雨佳 | 杭州师范大学材料与化学化工学院, 有机硅化学及材料技术教育部重点实验室, 杭州 311121 | | | 沈珍 | 南京大学化学化工学院, 配位化学国家重点实验室, 南京 210023 | | | 卢华 | 杭州师范大学材料与化学化工学院, 有机硅化学及材料技术教育部重点实验室, 杭州 311121 | hualu@hznu.edu.cn |
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| 摘要: 圆偏振发光(circularly polarized luminescence，CPL)材料因其独特的手性光学特性，在3D显示、生物成像、数据存储和自旋光电子器件等领域展现出广泛的应用潜力，近年来备受科研人员关注。然而，当前的研究主要集中在紫外/可见光区，具有近红外CPL特性的分子材料却非常稀少。相较于可见光波段，近红外光具有穿透能力强、背景散射小等优点，在生物成像、探测和加密通信等领域具有显著优势。作为靛蓝的异构体，β-异靛蓝具有丰富的结构修饰和配位模式，为开发近红外CPL分子材料提供了理想的骨架。本文系统阐述基于β-异靛蓝骨架的CPL分子材料的有趣发现过程，以及如何在此基础上简单高效地实现近红外CPL分子材料的制备。最后，展望基于β-异靛蓝骨架的近红外CPL分子材料的未来发展，预测该骨架将成为近红外CPL领域一类重要的明星骨架材料。 |
| 关键词: 圆偏振发光 β-异靛蓝 近红外 发光材料 氟硼染料 |
| 基金项目: 国家自然科学基金(No.21871072，22401067)和杭州师范大学交叉学科研究项目基金(No.2024JCXK01)资助。 |
| Abstract: Circularly polarized luminescence (CPL) materials, characterized by their unique chiral optical properties, have shown a wide range of potential applications in the fields of 3D display, bioimaging, data storage, and spintronics. However, current research predominantly focuses on the ultraviolet/visible light spectrum, while molecules with near-infrared (NIR) CPL capabilities remain notably scarce. Near-infrared light, which offers deeper penetration and reduced background scattering, holds distinct advantages for bioimaging, detection, and secure communication. Consequently, the development of NIR CPL materials has become an urgent scientific priority. Among the various molecular scaffolds explored, β-isoindigo stands out as an ideal candidate for the development of NIR CPL materials due to its unique structural features and exceptional optical properties. As an isomer of indigo, β-isoindigo possesses abundant sites for structural modification and diverse coordination modes, enabling precise chemical tuning of its electronic structure and optical behavior. Its extended π-conjugated system not only facilitates a reduction in the energy gap to achieve efficient NIR emission but also enhances chiroptical activity through chiral functionalization, thereby improving CPL performance. Based on these attributes, the β-isoindigo framework provides a versatile molecular platform for designing and constructing high-performance NIR CPL materials. This review systematically elucidates recent advances in NIR CPL molecular materials based on the β-isoindigo scaffold, detailing their discovery, synthetic methodologies, and potential future developments. By providing a comprehensive overview, this work aims to inspire further research in this field and contribute to the rational design and optimization of next-generation NIR CPL materials. |
| Keywords: circularly polarized luminescence β-isoindigo near-infrared luminescent materials fluoroboron dyes |
| 投稿时间：2024-12-25 修订日期：2025-03-19 |
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