He Xuan, Wei Peifa
Anhui Graphene Engineering Laboratory, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China.
Chem Soc Rev. 2024 Jul 1;53(13):6636-6653. doi: 10.1039/d4cs00325j.
The design and development of organic solid-state luminescent materials stand as crucial pillars within the realm of contemporary photofunctional materials. Overcoming challenges such as concentration quenching and achieving tailored luminescent properties necessitates a judicious approach to molecular structure design and the strategic utilization of diverse stimuli to modulate molecular packing patterns. Among the myriad candidates, α-cyanodiarylethenes (CAEs) emerge with distinctive solid-state luminescent attributes, capable of forming self-assembled packing structures with varying degrees of π-π stacking. This characteristic endows them with potential in the field of intelligent molecular responsive materials and optoelectronic devices. This tutorial review embarks on an exploration of design strategies geared towards attaining tunable solid-state emission through customized packing of CAEs. It explores the utilization of stimuli responses, including such as mechanical forces, light irradiation, solvent interactions, thermal influences, as well as the utilization of co-assembly methodologies. The overarching aim of this review is to provide a widely applicable platform fostering the flourishing development of modern organic photofunctional materials through integrating principles of molecular engineering, organic optoelectronics, and materials science.
有机固态发光材料的设计与开发是当代光功能材料领域的关键支柱。克服诸如浓度猝灭等挑战并实现定制的发光特性，需要对分子结构设计采取明智的方法，并战略性地利用各种刺激来调节分子堆积模式。在众多候选材料中，α-氰基二芳基乙烯（CAEs）展现出独特的固态发光特性，能够形成具有不同程度π-π堆积的自组装堆积结构。这一特性使其在智能分子响应材料和光电器件领域具有潜力。本教程综述着手探索通过CAEs的定制堆积实现可调谐固态发射的设计策略。它探讨了刺激响应的利用，包括机械力、光照射、溶剂相互作用、热影响，以及共组装方法的利用。本综述的总体目标是通过整合分子工程、有机光电子学和材料科学原理，提供一个广泛适用的平台，促进现代有机光功能材料的蓬勃发展。
