18 August 2005 Carbon nanotube nanocomposites: quasi 1-dimensional structures for electron transfer
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Abstract
We integrated single wall carbon nanotubes (SWNT), several water-soluble pyrene derivatives, which either bear negatively (pyrene-) or positively charged (pyrene+) charged ionic headgroups, and a series of water-soluble metalloporphyrins (MP8+/MP8-) into functional nanohybrids through a combination of associative van-der-Waals and electrostatic interactions. The resulting SWNT / pyrene and SWNT / pyrene / MP were characterized by spectroscopic and microscopic means and were found to form stable nanohybrid structures in aqueous media. When the nanohybrid systems are photoexcited with visible light, a rapid intrahybrid charge separation causes the reduction of the electron accepting SWNT and, simultaneously, the oxidation of the electron donating MP. Beneficial are charge recombination dynamics that are located in the Marcus-inverted region.
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Dirk M. Guldi, Dirk M. Guldi, G. M. Aminur Rahman, G. M. Aminur Rahman, Norbert Jux, Norbert Jux, Domenico Balbinot, Domenico Balbinot, Uwe Hartnagel, Uwe Hartnagel, Nikos Tagmatarchis, Nikos Tagmatarchis, Maurizio Prato, Maurizio Prato, } "Carbon nanotube nanocomposites: quasi 1-dimensional structures for electron transfer", Proc. SPIE 5929, Physical Chemistry of Interfaces and Nanomaterials IV, 592902 (18 August 2005); doi: 10.1117/12.612078; https://doi.org/10.1117/12.612078
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