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Controlled Positioning of Carbon Nanotubes by Dielectrophoresis : Insights into the Solvent and Substrat Role

Related publications (36)

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Effect of metal elements in catalytic growth of carbon nanotubes

Alfredo Pasquarello, Oleg Yazyev

Using first-principles calculations, we model the chemical vapor deposition (CVD) growth of carbon nanotubes (CNT) on nanoparticles of late-transition (Ni, Pd, Pt) and coinage (Cu, Ag, Au) metals. The process is analyzed in terms of the binding of mono- an ...

2008

Electrospray ion beam deposition and mass spectrometry of nonvolatile molecules and nanomaterials

Stephan Rauschenbach

The vacuum deposition of complex functional molecules and nanoparticles by thermal sublimation is often hindered due to their extremely low vapor pressure. This especially impedes the application of ultrahigh vacuum (UHV) based analytical and surface modif ...

EPFL2008

Er-doped Al2O3 thin films deposited by high-vacuum chemical vapor deposition (HV-CVD)

Patrik Willi Hoffmann, Xavier Multone

Erbium-doped amorphous aluminum oxide layers deposited on Si or oxidized silicon substrates are promising construction pieces for future monolytic integrated optoelectronics devices. In a novel high-vacuum chemical vapor deposition setup the alumina films ...

2008

Ferroelectric gate on AlGaN/GaN heterostructures

Lisa Malin

The capability of switching the spontaneous polarisation under an applied electric field in ferroelectric materials can be exploited for the use in low power, non-volatile, re-writable memory devices. Currently available commercially is ferroelectric rando ...

EPFL2007

Manipulation of individual carbon nanotubes

Mirko Milas

Carbon nanotubes the long, cylindrical carbon molecules are the most exciting material discovered lately. They offer the possibility for a large number of applications. My task was to explore the way how we can use multi-walled carbon nanotubes (MWNT) in s ...

EPFL2006

Static dielectric properties of carbon nanotubes from first principles

Nicola Marzari, Boris Kozinsky

We characterize the response of isolated single-wall (SWNT) and multiwall (MWNT) carbon nanotubes and nanotube bundles to static electric fields using first-principles calculations and density-functional theory. The longitudinal polarizability of SWNTs sca ...

2006

Engineering molecular nanostructures at surfaces

In the framework of this thesis molecular nanostructures have been engineered on surfaces and are characterized using a variety of techniques. Two types of molecules have been used: carbon nanotubes (CNT) and 4-[trans-2-(pyrid-4-yl-vinyl)] benzoic acid (PV ...

EPFL2005

Carbon nanofibers grown on metallic filters as novel catalytic materials

Lioubov Kiwi, Pascal Tribolet

Carbon nanofibers (CNF) were synthesized on sintered metal fibers (SMF) filters of nickel and Ni-containing alloys (Inconel, stainless steel (SS)) by thermal chemical vapor deposition of ethane in the presence of hydrogen at not, vert, similar660 °C. The C ...

2005

Growth of carbon nanotubes with alkaline earth carbonate as support

László Forró, Arnaud Magrez, Csilla Mikó, Jin Won Seo, Klara Hernadi

Multiwalled carbon nanotubes (MWCNTs) were grown by chemical vapor deposition by applying C2H2 fluxed over Fe1-xCox catalyst supported by alkaline earth carbonate. Detailed investigations of the chemical process occurring prior and during the growth allowe ...

2005

Deposition on Curved Surfaces by Means of E-Beam Evaporation

Chantal Imboden

Recently, some research effort has been instigated towards micro and nano patterning of curved surfaces, as system miniaturization by means of patterned planar surfaces has practically reached its limits. In contrast to the more practical approach of exist ...

2005