Xiao Tangxin, Shen Yong, Bao Cheng, Diao Kai, Ren Dongxing, Qian Hongwei, Zhang Liangliang
School of Petrochemical Engineering, Changzhou University Changzhou 213164 China
RSC Adv. 2021 Sep 8;11(48):30041-30045. doi: 10.1039/d1ra06239e. eCollection 2021 Sep 6.
Supramolecular luminescent materials in water have attracted much interest due to their excellent tunability, multi-color emission, and environment-friendly behavior. However, hydrophobic chromophores are often affected by poor solubility and aggregation-caused quenching effects in aqueous media. Herein, we report a water-phase artificial light-harvesting system based on an AIE-type supramolecular polymer. Specifically, dispersed nanoparticles in water were prepared from an AIE chromophore-bridged ditopic ureidopyrimidinone (M) based supramolecular polymer with the assistance of surfactants. By co-assembling the hydrophobic chromophores NDI as energy acceptor into the nanocarriers, artificial light-harvesting systems (M-NDI) could be successfully constructed, exhibiting efficient energy transfer and high antenna effects. Furthermore, the spectral emission of the system could be continuously tuned with a relatively small number of acceptors. This work develops an efficient supramolecular light-harvesting system in water, which has potential applications in dynamic luminescent materials.
水中的超分子发光材料因其出色的可调性、多色发射和环境友好行为而备受关注。然而，疏水性发色团在水性介质中常受到溶解度差和聚集诱导猝灭效应的影响。在此，我们报道了一种基于聚集诱导发光（AIE）型超分子聚合物的水相人工光捕获系统。具体而言，在表面活性剂的辅助下，由基于AIE发色团桥联的双位脲嘧啶二酮（M）的超分子聚合物制备了水中的分散纳米颗粒。通过将作为能量受体的疏水性发色团NDI共组装到纳米载体中，可以成功构建人工光捕获系统（M-NDI），表现出高效的能量转移和高天线效应。此外，该系统的光谱发射可以用相对少量的受体进行连续调节。这项工作开发了一种高效的水中超分子光捕获系统，在动态发光材料方面具有潜在应用。
