Fluorescent Photochromic α‐Cyanodiarylethene Molecular Switches: An Emerging and Promising Class of Functional Diarylethene,Advanced Functional Materials

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Fluorescent Photochromic α‐Cyanodiarylethene Molecular Switches: An Emerging and Promising Class of Functional Diarylethene
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-11-03 , DOI: 10.1002/adfm.202007957
Siyang Lin ₁ , Karla G. Gutierrez‐Cuevas ₂ , Xinfang Zhang ₂ , Jinbao Guo ₁ , Quan Li ₂

Affiliation

Fluorescent photochromic molecules that exhibit distinct light‐triggered changes in their emission colors are highly desirable for the fabrication of smart soft materials and advanced photonic devices. α‐Cyanodiarylethenes, that is, α‐cyano‐functionalized diarylethenes, as alternative “non‐azo” Z/E photochromic molecular switches, are popular choices due to their unique characteristics such as their aggregation‐induced emission or aggregation‐induced‐enhanced emission behavior in their self‐assembled states, and visible changes in fluorescence colors during Z/E photoisomerization. In recent years, the development of fluorescent photochromic α‐cyanodiarylethene‐based compounds including α‐cyanostilbenes, dicyanodistyrylbenzenes, and diaryldicyanoethenes, has mainly focused on molecular design, photochemical and photophysical behavior in solution, and smart soft matter technologies. In this review, recent significant achievements in light‐responsive systems based on the Z/E photoisomerization of fluorescent photochromic α‐cyanodiarylethene switches that span the range from liquid crystals to gels and finally to self‐assembled nanostructures, are highlighted. The smart soft materials constructed from α‐cyanodiarylethene molecular switches find use in a plethora of areas, including display, sensing, encrypting, actuating, and biomedical imaging applications, among others. The review concludes with a brief perspective on some major challenges and opportunities for the future development of light‐responsive smart soft photonic materials.

中文翻译：

荧光光致变色α-氰基二芳基乙烯分子开关：新兴和有希望的一类功能性二芳基乙烯

荧光光致变色分子在其发射颜色方面表现出明显的光触发变化，是制造智能软材料和先进光子器件的理想之选。作为替代的“非偶氮” Z / E光致变色分子开关，α-氰基二芳烃，即α-氰基官能化的二芳烃，由于其独特的特性（例如聚集诱导发射或聚集诱导增强发射）而成为热门选择。在自组装状态下的行为，以及Z / E光异构化过程中荧光颜色的可见变化。近年来，基于荧光光致变色α-氰基二芳基乙烯的化合物的开发，包括α-氰基苯乙烯，二氰基二苯乙烯基苯和二芳基二氰基烯烃，主要致力于分子设计，溶液中的光化学和光物理行为，和智能软物质技术。在这篇综述中，重点介绍了基于光致变色α-氰基二芳基乙烯开关的Z / E光异构化的光响应系统的最新成就，该开关涵盖从液晶到凝胶，再到自组装纳米结构。由α-氰基二芳基乙烯分子开关构成的智能软材料可用于许多领域，包括显示，传感，加密，驱动和生物医学成像应用等。回顾总结了光敏智能软光子材料未来发展的一些重大挑战和机遇。着重介绍了基于Z / E光致变色的荧光光致变色α-氰基二芳基乙烯开关的光响应系统的最新成就，该开关的范围从液晶到凝胶，再到自组装纳米结构。由α-氰基二芳基乙烯分子开关构成的智能软材料可用于许多领域，包括显示，传感，加密，驱动和生物医学成像应用等。回顾总结了光敏智能软光子材料未来发展的一些重大挑战和机遇。着重介绍了基于Z / E光致变色的荧光光致变色α-氰基二芳基乙烯开关的光响应系统的最新成就，该开关的范围从液晶到凝胶，再到自组装纳米结构。由α-氰基二芳基乙烯分子开关构成的智能软材料可用于许多领域，包括显示，传感，加密，驱动和生物医学成像应用等。回顾总结了光敏智能软光子材料未来发展的一些重大挑战和机遇。由α-氰基二芳基乙烯分子开关构成的智能软材料可用于许多领域，包括显示，传感，加密，驱动和生物医学成像应用等。回顾总结了光敏智能软光子材料未来发展的一些重大挑战和机遇。由α-氰基二芳基乙烯分子开关构成的智能软材料可用于许多领域，包括显示，传感，加密，驱动和生物医学成像应用等。回顾总结了光敏智能软光子材料未来发展的一些重大挑战和机遇。

更新日期：2020-11-03

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