作者: V. Biju , S. Barazzouk , K. George Thomas , M. V. George , Prashant V. Kamat
DOI: 10.1021/LA001644N
关键词:
摘要: Fullerene derivative 1,2,5-triphenylpyrrolidinofullerene (TPPF) forms optically transparent clusters (mean diameter of ∼180 nm) in toluene/acetonitrile mixtures. The bimolecular rate constants for the quenching a singlet excited state TPPF by various electron donors (substituted anilines and heteroaromatics) were found to be significantly higher than that corresponding monomeric analogue. local concentration fullerene molecules is much these because microheterogeneous environment facilitates trapping donor molecules. Formation long-lived electron-transfer products, following photoexcitation cluster donors, was confirmed through flash photolysis studies. cluster−donor assemblies when deposited as thin film on nanostructured SnO2 semiconductor film, act photosensitive electrode material. Light energy can harvested using an intermolecular transfer between ...