卟啉功能化石墨烯的光诱导电子传递过程

Photoinduced Electron Transfer Processes of Graphene Functionalized by Porphyrins

阐述了人工光合成系统高效光电转换过程与其结构之间的关系,讨论了光敏剂功能化石墨烯光诱导电子转移过程。石墨烯及氧化石墨烯(GO)与光敏剂卟啉、酞菁以共价、非共价或超分子形式相互作用,并通过调整其电子给体-受体(D-A)杂化分子电子性质和结构,在光照条件下,促进了系统高效的电子传递过程。卟啉类化合物功能化石墨烯D-A杂化分子光诱导电子传递产生的长寿命的激发态离子对,有助于构建高效人工光合成系统,开发新型分子光电装置。

The relationship between efficient photoelectron-transfer processes and their structures in the artificial photosynthetic systems is expatiated,and the photoinduced electron transfer processes of graphene functionalized by porphyrins are discussed.The graphene and graphene oxide（GO）interact with photosensitizers,such as porphyrins and phthalocyanines by covalent and noncovalent bond formations or supramolecule,and the high-efficiency electron transfer processes in these systems under lighting condition are promoted by the adjustment of the electronic properties and structures of donor-acceptor（D-A）hybrid molecules.The D-A hybrid molecules functionalized by graphene and porphyrins produce the long-lived radical ion pairs by the photoinduced electron transfer processes,which will help to build efficient artificial photosynthetic systems and develop the new type of molecular optoelectronics devices.