Spectroscopic Characterization of Photolytically Generated Radical Ion Pairs in Single-Wall Carbon Nanotubes Bearing Surface-Immobilized Tetrathiafulvalenes
Journal of the American Chemical Society2007Vol. 130(1), pp. 66–73
Citations Over TimeTop 10% of 2007 papers
M. Ángeles Herranz, Christian Ehli, Stéphane Campidelli, Miriam Gutiérrez, Gordon L. Hug, Kei Ohkubo, Shunichi Fukuzumi, Maurizio Prato, Nazario Martı́n, Dirk M. Guldi
Abstract
We succeeded in establishing for the first time a conclusive spectroscopic signature for reduced single-wall carbon nanotubes (SWNT), which evolves from electron donor-acceptor interactions between SWNT and electron-donating pi-extended tetrathiafulvalene (exTTF). In particular, pi-pi interactions were employed to anchor the electron donor to the surface of SWNT. New conduction band electrons, injected from photoexcited exTTF, shift the transitions that are associated with the van Hove singularities to lower energies.
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