Publications associées à Capacitive nanoelectromechanical switch based on suspended carbon nanotube array

Revealing the Mechanism Underlying 3D-AFM Imaging of Suspended Structures by Experiments and Simulations

The invention of 3D atomic force microscopy (3D-AFM) has enabled visualizing subnanoscale 3D hydration structures. Meanwhile, its applications to imaging flexible molecular chains have started to be experimentally explored. However, the validity and princi ...

Wiley-V C H Verlag Gmbh2024

Functionalized Å-scale Pores in Graphene for Carbon Capture

Kuang-Jung Hsu

Single-layer graphene, hosting a high density of functionalized molecular-sieving atom-thick pores, is considered to be an excellent material for gas separation membranes. These functionalized atom-thick pores enable the shortest transport pathway across t ...

EPFL2024

Resonant Transducers Consisting of Graphene Ribbons with Attached Proof Masses for NEMS Sensors

Luis Guillermo Villanueva Torrijo, Daniel Moreno Garcia

The unique mechanical and electrical properties of graphene make it an exciting material for nanoelectromechanical systems (NEMS). NEMS resonators with graphene springs facilitate studies of graphene's fundamental material characteristics and thus enable i ...

Amer Chemical Soc2023

Etching nanopores in single-layer graphene with a sub-angstrom resolution in molecular sieving

Shiqi Huang

Single-layer graphene (SLG) membranes, hosting molecular-sieving nanopores have been regarded as the ultimate gas separation membranes, attributing to the fact that they are the thinnest possible molecular barrier. However, the expected attractive performa ...

EPFL2021

Centimeter-scale gas-sieving nanoporous single-layer graphene membrane

Luc Sébastien Bondaz, Kumar Varoon Agrawal, Shiqi Huang, Guangwei He, Mostapha Dakhchoune, Wan-Chi Lee

High-permeance, molecular-sieving, nanoporous single-layer graphene (NSLG) membranes are highly promising for gas separation. However, the formation of cracks during the transfer of NSLG to a low-cost porous support is difficult to avoid. These cracks are ...

2020

Templating colloidal sieves for tuning nanotube surface interactions and optical sensor responses

Daniel Jerôme Siefman, Ardemis Anoush Boghossian, Shang-Jung Wu, Benjamin Paul Johanès Gabriel Lambert, Alice Judith Gillen

Surfactants offer a tunable approach for modulating the exposed surface area of a nanoparticle. They further present a scalable and cost-effective means for suspending single-walled carbon nanotubes (SWCNTs), which have demonstrated practical use as fluore ...

2019

Rapid carbon nanotubes suspension in organic solvents using organosilicon polymers

Jürgen Brugger, Jonas Grossenbacher, Rosario Maurizio Gullo

A strategy for a simple dispersion of commercial multi-walled carbon nanotubes (MWCNTs) using two organosilicones, polycarbosilane SMP10 and polysilazane Ceraset PSZ20, in organic solvents such as cyclohexane, tetrahydrofuran (THF), m-xylene and chloroform ...

Elsevier2016

Enabling High Frequency Reconfigurable Functions with Graphene

Clara-Fausta Moldovan

As the scaling of complementary metal-oxide-semiconductor (CMOS) technology is reaching fundamental limitations, novel device concepts and materials have started to be investigated to overcome the scaling challenges for integrated circuits. Graphene has be ...

EPFL2016

Nanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Magdalena Anna Marszalek

The ability of Pt nanostructures to induce the splitting of the I-I bond in iodine (triiodide) molecules is explored here to enhance electron transfer in the iodine/iodide redox couple. Following the dispersal of Pt nanoparticles at 2% (weight) level, char ...

Wiley-VCH Verlag Berlin2015

High-yield, in-situ fabrication and integration of horizontal carbon nanotube arrays at the wafer scale for robust ammonia sensors

Mihai Adrian Ionescu, Laurent Syavoch Bernard, Hoël Maxime Guérin, Elizabeth Buitrago Godinez

This paper reports the successful experimental demonstration of the localized growth of horizontal, dense carbon nanotube (CNT) arrays in situ and at the wafer scale. The selectivity and directionality of the CNT catalytic growth process along with the ade ...

Pergamon-Elsevier Science Ltd2014

Functionalized Carbon Nanostructures from Oligoyne Carboxylates

Stephen Schrettl

Functional nanostructured carbon materials, including two-dimensionally extended nanosheets, offer intriguing perspectives for applications in emerging technologies such as hydrogen storage, lithium storage, transition metal free catalysis, or solar abso ...

EPFL2014

Horizontal growth of dense carbon nanotube membranes for interconnects and sensors

Mihai Adrian Ionescu, Hoël Maxime Guérin

Dense array of horizontal carbon nanotubes (CNTs) connected to electrodes is a basic building block for devices in a wide field of applications such as interconnect lines or micro-electromechanical systems (MEMS) for sensing for instance. For interconnects ...

2013

Carbon Nanotube Precise Assembly for CMOS and NEMS Applications

Ji Cao

As complementary metal–oxide–semiconductor (CMOS) scaling meets fundamental limitations, revolutionary device concepts and materials are urgently needed as alternatives or supplements to CMOS technology. Carbon nanotubes (CNTs), featuring extraordinary phy ...

EPFL2013

System-Level Design Considerations for Carbon Nanotube Electromechanical Resonators

Maher Kayal, Jean-Michel Sallese, Marc Pastre, Christian Kauth

Despite an evermore complete plethora of complex domain-specific semiempirical models, no succinct recipe for large-scale carbon nanotube electromechanical systems design has been formulated. To combine the benefits of these highly sensitive miniaturized m ...

Hindawi Publishing Corporation2013

Molecular modeling of cracks at interfaces in nanoceramic composites

William Curtin, Fabio Pavia

Toughness in Ceramic Matrix Composites (CMCs) is achieved if crack deflection can occur at the fiber/matrix interface, preventing crack penetration into the fiber and enabling energy-dissipating fiber pullout. To investigate toughening in nanoscale CMCs, d ...

Elsevier2013

Plasmon Nanomechanical Coupling for Nanoscale Transduction

Tobias Kippenberg

We demonstrate plasmon-mechanical coupling in a metalized nanomechanical oscillator. A coupled surface plasmon is excited in the 25 nm wide gap between two metalized silicon nitride beams. The strong plasmonic dispersion allows the nanomechanical beams the ...

American Chemical Society2013

Floating conductive catalytic nano-rafts at soft interfaces for hydrogen evolution

Hubert Girault, Micheal Diarmaid Scanlon

Mo2C nanowires and composites of Mo2C nanoparticles formed on multiwalled carbon nanotubes (Mo2C/CNT) were developed as advanced catalysts for hydrogen evolution at a polarised water–1,2-dichloroethane interface. Each catalyst acts as a catalytic nano-raft ...

Royal Soc Chemistry2013

3D-Integration of a Carbon Nanotube based RF-NEMS

Rokhaya Gueye

In the framework of the NanoTera project CabTuRes, a system-in-package for a nano-resonator was proposed, integrating CMOS driving electronics and vacuum encapsulation. This doctoral research aimed to investigate 3D-integration technologies for a Single-Wa ...

EPFL2013

In-situ grown horizontal carbon nanotube membrane

Mihai Adrian Ionescu, Dimitrios Tsamados, Hoël Maxime Guérin

We present the successful fabrication of horizontally grown and dense carbon nanotube (CNT) membranes in situ. A TiN/Al2O3/TiN stack is first patterned to be employed as a support for the CNT growth. Iron is then evaporated with a 45 degrees tilt angle on ...

Elsevier2012

Carbon Nanotubes With Different Orientations for Electrochemical Biodevices

Giovanni De Micheli, Sandro Carrara, Irene Taurino

Carbon nanotubes (CNTs) improve the sensitivity of electrochemical biosensors. An optimized CNT/trasducer inte- gration is required to realize accurate devices. The nanotube orientation on the sensor electrode is a key parameter. The role of the sidewalls ...

Institute of Electrical and Electronics Engineers2012