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Photoinduced Electron-Transfer Processes in Fullerene-Based Donor–Acceptor Systems

✍ Scribed by K. George Thomas; Manapurathu V. George; Prashant V. Kamat

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
419 KB
Volume
88
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Photoinduced electron‐transfer processes in fullerene‐based donor–acceptor dyads (DBA) in homogeneous and cluster systems are summarized. Stabilization of charge has been achieved through the use of fullerene substituted‐aniline/heteroaromatic dyads with tunable ionization potentials and also by using fullerene clusters. The rate constants for charge separation (k~CS~) and charge recombination (k~CR~) in fullerene substituted‐aniline/heteroaromatic dyads show that forward electron transfer falls in the normal region of the Marcus curve and the back electron transfer in the inverted region of the Marcus parabola. Clustering of fullerene‐based dyads assists in effective delocalization of the separated charge and thereby slows down the back electron transfer in these cases.

📜 SIMILAR VOLUMES

Electron transfer through intramolecular
Electron transfer through intramolecular bridges in donor/acceptor systems
✍ H Heitele; M.E Michel-Beyerle; P Finckh 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 505 KB

Intramolecular electron transfer rates for ion formation in bridged donor/acceptor systems have been determined using fluorescence lifetime measurements. The data show a weak dependence of the rate on the donor/acceptor distance as well as a dependence on the electronic structure of the spacer. Thes