超分子人工光捕获体系的设计、构筑与应用综述

Supramolecular Artificial Light-Harvesting System:Design,Fabrication,and Application

超分子自组装是指多个分子单元通过分子间相互作用力自发缔合成高度有序的分子聚集体的过程,其合成简单,组装效率较高,可实现组装体结构与功能的精准调控。自然界中的光捕获体系基于叶绿素和蛋白质之间的非共价键作用形成,且可以实现多次、连续的能量转移过程并最终将能量传递至反应中心,进而完成高效的光合作用。早前大多数人工光捕获体系研究是以荧光共振能量转移过程为基础,在有机相中基于共价键构筑;目前对于人工光捕获体系的研究主要集中在水相中基于非共价键作用构筑。本文对基于超分子自组装构筑的人工光捕获体系的近期发展进行综述,并简要介绍人工光捕获体系在光催化、光电材料等方面的应用,同时对人工光捕获体系的发展前景进行了展望。

Supramolecular self-assembly refers to the process by which multiple molecular units spontaneously associate into highly ordered molecular aggregates through intermolecular interactions.It can improve assembly efficiency as well as avoid some tedious and complex synthesis.The structure and functionality of the assembly can be accurately controlled.Natural light-harvesting systems are based on the non-covalent bonds between chlorophyll and protein,which can achieve multiple and Continuous energy transfer process and ultimately transfer the energy to the reaction center for completing further efficient photosynthesis process.Learning from nature,scientists have been paying great attention to constructing artificial light-harvesting system and studying their light capture mechanism and efficiency.Most of earlier studies of artificial light-harvesting systems were constructed by covalent bonds based on the fluorescence resonance energy transfer process in the organic phase.At present,the research on artificial light-harvesting systems mainly focuses on the construction based on non-covalent bonds in the aqueous phase.This review intend to summarize the fabrication of artificial light-harvesting systems based on supramolecular self-assembly and briefly introduced the application of artificial light-harvesting systems in photocatalysis,photoelectric material et al and discusses the prospects of artificial light-harvesting systems.