Yoshiteru Sakata

TL;DR: The lowest lying charge-separated state of all the investigated systems, namely, that of ferrocenium ion and the C60 radical anion pair in the Fc-ZnP-C60 triad, has been generated with the highest quantum yields and reveals a lifetime as long as 16 micros.

TL;DR: An extremely long-lived charge-separated state has been achieved successfully using a ferrocene-zincporphyrin-freebaseporphyrin -fullerene tetrad which reveals a cascade of photoinduced energy transfer and multistep electron transfer within a molecule in frozen media as well as in solutions.

TL;DR: The present system provides the first example of an artificial photosynthetic system, which not only mimics light-harvesting and charge separation processes in photosynthesis but also acts as an efficient light-to-current converter in molecular devices.

TL;DR: In this article, a novel strategy using fullerenes for the construction of solar energy conversion systems that mimic the primary electron transfer events in photosynthesis was proposed, which can accelerate photoinduced charge separation and slow down charge recombination, properties that are in sharp contrast with those of conventional two-dimensional aromatic acceptors such as quinones and imides.

TL;DR: In this paper, photoinduced charge separation and subsequent charge recombination were observed in a series of zincporphyrin-C60 dyads by picosecond fluorescence lifetime measurements and time-resolved transient absorption spectroscopy.