Liu Bin, Liu Hao, Zhang Houyu, Di Qi, Zhang Hongyu
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.
J Phys Chem Lett. 2020 Nov 5;11(21):9178-9183. doi: 10.1021/acs.jpclett.0c02623. Epub 2020 Oct 15.
Flexible luminescent crystals have attracted increasing attention on account of the potential application value in optical material fields. How to design crystals with high elasticity and bright luminescence is an urgent duty that material researchers want to effectuate. Crystal engineering could achieve different crystal materials with various functions based on one molecular structure. Therefore, crystal engineering provides a potential strategy to improve the properties of flexible crystals. In this paper, we gave a pioneer work to improve the properties of flexible luminescent crystals by designing on crystal structure. By disclosing the relationship of structure-property, our work extracted the advantages (elasticity or bright emission) of two inferior crystals and obtained three elastic bending crystals with outstanding emission behaviors. Notably, our work not only achieves the fabrication of flexible crystals based on crystal engineering aspect but also provides good candidates for flexible optical waveguiding materials.
柔性发光晶体因其在光学材料领域的潜在应用价值而受到越来越多的关注。如何设计出具有高弹性和明亮发光特性的晶体是材料研究人员亟待实现的任务。晶体工程能够基于一种分子结构实现具有不同功能的晶体材料。因此，晶体工程为改善柔性晶体的性能提供了一种潜在策略。在本文中，我们通过晶体结构设计在改善柔性发光晶体性能方面开展了开创性工作。通过揭示结构与性能的关系，我们的工作提取了两种性能较差晶体的优点（弹性或明亮发光），并获得了三种具有出色发光行为的弹性弯曲晶体。值得注意的是，我们的工作不仅在晶体工程方面实现了柔性晶体的制备，还为柔性光波导材料提供了良好的候选材料。
