Photoinduced charge transfer in porphyrin-C_(60) oligomer

作     者：JIA MingLi WAN Yan WANG XueFei XIA AnDong 

作者机构：State Key Laboratory of Molecular Reaction DynamicsBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China 

出 版 物：《Science China Chemistry》 (中国科学(化学英文版))

年 卷 期：2010年第53卷第2期

页      面：419-425页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China  973 Programs and Chinese Academy of Sciences 

主　　题：intramolecular charge transfer(ICT) triplet-triplet absorption donor-acceptor compound 

摘      要：Photoinduced electron transfer (ET) between C60 and porphyrin (P) in a new polymer containing porphyrin, poly(p-phenyle nevinylene), and pendant fullerene units has been investigated by nanosecond transient absorption and phosphorescence spectroscopy. Compared to the physically doping material systems, binding porphyrin/C60 through chemical bonds in a polymer detains the formation of the triplet states of porphyrins and C60. The formation of intermediate charge transfer state (CSS) of P·+-C60·? was observed, which led to the delayed formation of triplet states of porphyrins and C60. The reduced opto-electronic properties, such as optical limiting performance, were also observed, which resulted from the delayed formation of triplet states. The results presented in this article are significant in understanding the complicated spectral characteristics of the triplet state and charge transfer of the porphyrin and C60 complexes, and are therefore related to the controllable performance of the new materials in applications.