Carbon nanotube nanocomposites: quasi 1-dimensional structures for electron transfer

Dirk M. Guldi; G. M. Aminur Rahman; Norbert Jux; Domenico Balbinot; Uwe Hartnagel; Nikos Tagmatarchis; Maurizio Prato

doi:10.1117/12.612078

18 August 2005 Carbon nanotube nanocomposites: quasi 1-dimensional structures for electron transfer

Dirk M. Guldi, G. M. Aminur Rahman, Norbert Jux, Domenico Balbinot, Uwe Hartnagel, Nikos Tagmatarchis, Maurizio Prato

Proceedings Volume 5929, Physical Chemistry of Interfaces and Nanomaterials IV; 592902 (2005) https://doi.org/10.1117/12.612078
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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⁺/MP^8-) 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, G. M. Aminur Rahman, Norbert Jux, Domenico Balbinot, Uwe Hartnagel, Nikos Tagmatarchis, and 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); https://doi.org/10.1117/12.612078

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KEYWORDS

Single walled carbon nanotubes

Absorption

Luminescence

Carbon nanotubes

Nanocomposites

Fullerenes

Transmission electron microscopy

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