Concept

Selective chemistry of single-walled nanotubes

Publications associées (91)

All-Optical Manipulation of Electron Spins in Carbon-Nanotube Quantum Dots

We demonstrate theoretically that it is possible to manipulate electron or hole spins all optically in semiconducting carbon nanotubes. The scheme that we propose is based on the spin-orbit interaction that was recently measured experimentally; we show tha ...

American Physical Society2008

Effect of the electronic structure of carbon nanotubes on the selectivity of electrochemical functionalization

Klaus Kern, Marko Burghard, Kannan Balasubramanian

The functionalization of carbon nanotubes through electrochemical routes is gaining importance due to the high degree of control achievable and the ability to render the tubes with a variety of chemical and biological species. In this article, we report sy ...

2008

Carbon nanotubes functionalized with dye molecules and metal nanoparticles

Tilman Assmus

Single-walled carbon nanotubes are highly interesting quasi one-dimensional nanostructures. They possess a multitude of fascinating optical, mechanical and electrical properties, which can be even further expanded through appropriate functionalization stra ...

EPFL2008

La@C82 as a spin-active filling of SWCNTs: ESR study of magnetic and photophysical properties

László Forró, Arnaud Magrez, Duncan Thomas Lindsay Alexander, Andrzej Sienkiewicz, Katarzyna Pierzchala, Luka Ciric, Bálint Náfrádi

Electron microscopy (TEM) and electron spin resonance ESR) were applied to characterize lanthanum metallofullerene(La@C82)-filled peapods. The peapods were prepared by encapsulation of La@C82 in SWCNTs, which were obtained by laser ablation technique in th ...

2008

Trapping Individual Carbon Nanotubes

Mihai Adrian Ionescu, Anupama Arun

A technique to deterministically manipulate individual Carbon Nanotubes (CNT) has been the brick-wall for the boom of CNT based devices. Here we demonstrate dielectrophoresis as an efficient technique to trap individual Single Walled Carbon Nanotubes (SWCN ...

2008

Molecular Wiring of Olivine LiFeP04 by Ruthenium(II)-Bipyridine Complexes and by Their Assemblies with Single-Walled Carbon Nanotubes

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ladislav Kavan

The undoped and carbon-free olivine, LiFePO4 was bonded with 5% PVDF, and deposited on F-doped SnO2 support (FTO). The electrodes were modified by a monolayer of three different complexes: NaRu(4,4′-dicarboxylic acid-2,2′-bipyridine)(4,4′-dinonyl-2,2′-bipy ...

2008

Elastic properties of chemically derived single graphene sheets

Klaus Kern, Marko Burghard

The elastic modulus of freely suspended graphene monolayers, obtained via chemical reduction of graphene oxide, was determined through tip-induced deformation experiments. Despite their defect content, the single sheets exhibit an extraordinary stiffness ( ...

2008

Metallic bundles of single-wall carbon nanotubes probed by electron spin resonance

László Forró, Bálint Náfrádi

C59N magnetic fullerenes inside single-wall carbon nanotubes (SWCNTs) are used to probe the density of states (DOS) on the host tubes using electron spin resonance (ESR). The C59N radicals are separated by C60 fullerenes to prevent dimerization and C59N-C6 ...

wiley-vch2007

Cycloaddition functionalizations to preserve or control the conductance of carbon nanotubes

Nicola Marzari

We identify a class of covalent functionalizations that preserve or control the conductance of single-walled metallic carbon nanotubes. [2+1] cycloadditions can induce bond cleaving between adjacent sidewall carbons, recovering in the process the sp(2) hyb ...

2006

Electron spin resonance of single-walled carbon nanotubes and related structures

László Forró, Bálint Náfrádi

We report new results on the electron spin resonance of single walled carbon nanotubes, peapods and double walled carbon nanotubes. A small ESR line is present in well purified samples and its temperature dependence reveals a striking 'super-Curie' paramag ...

2006

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