Photo‐Activated Circularly Polarized Luminescence Film Based on Aggregation‐Induced Emission Copper(I) Cluster‐Assembled Materials

作者：Yan Jin, Qiuchen Peng, Jing‐Wen Xie, Kai Li, Shuang‐Quan Zang · 发表于：Angewandte Chemie International Edition · 年份：2023 · DOI：10.1002/anie.202301000 · 被引用次数：75 · 研究领域：Luminescence and Fluorescent Materials、Nanocluster Synthesis and Applications、Synthesis and Properties of Aromatic Compounds

Abstract In this study, a pair of chiral copper(I) cluster‐assembled materials (R/S‐ 2 ) was prepared, exhibiting unique photo‐response characteristics with a concentration‐wavelength correlation property in DMSO solution. By the combination of R/S‐ 2 with a polymethyl methacrylate (PMMA) matrix, the first photo‐activated circularly polarized luminescence (CPL) film was developed, the CPL signal ( g lum =9×10 −3 ) of which could be induced by UV light irradiation. Moreover, the film exhibited a reversible photo‐response and extremely good fatigue resistance. Mechanism study revealed that the photo‐response properties of the R/S‐ 2 solution and film are attributed to the aggregation‐induced emission (AIE) characteristics of R/S‐ 2 and a photo‐induced deoxygenation process. This study enriches the types of luminescent cluster‐assembled molecules and provides a new strategy for the construction of metal cluster‐based stimuli‐responsive composite materials.