Two studies on carbon nanotubes by CEA DRECAM researchers have just been published in Physical Review Letters and Applied Physics Letters. The first study presents an innovative and experimentally verified theoretical law to predict and characterize the deformation of a carbon nanotube subject to an electrical field. The second study applies this knowledge to produce a nano-switch using innovative dimensioning and positioning control techniques.
MEMs technologies (microelectromechanical systems) combine mechanical, optical, electromagnetic, thermal and fluidic concepts with electronics to produce chip-based integrated systems performing sensor and/or actuator functions. MEMs are currently used in a large number of sectors such as the automobile industry (airbag sensors), the computer peripherals industry (inkjet printer cartridges), and also the defense, medical and space industries. These technologies accompany the advances in microelectronic miniaturization. For sizes less than one micron, the term NEMs is used (nanoelectromechanical systems). However, below a certain size, entirely different production techniques must be employed, one the one hand due to preeminent surface effects very difficult to control, and the other because the physics of the phenomena is susceptible to change in the quantic realm.
Carbon nanotubes are excellent candidates for the production of NEMs. The assembly of nano-objects is an elegant solution to the increasing difficulty of machining massive materials at nanometric scale. A few examples of carbon nanotube NEMs have been published in the literature over the past 4 or 5 years. However, the development of this field of research was limited by the absence of dimensioning control tools for carbon nanotube NEMs.
Pascal Newton | alfa
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Researchers from the Max Planck Institute Stuttgart have developed self-propelled tiny ‘microbots’ that can remove lead or organic pollution from contaminated water.
Working with colleagues in Barcelona and Singapore, Samuel Sánchez’s group used graphene oxide to make their microscale motors, which are able to adsorb lead...
Neutron scattering and computational modeling have revealed unique and unexpected behavior of water molecules under extreme confinement that is unmatched by any known gas, liquid or solid states.
In a paper published in Physical Review Letters, researchers at the Department of Energy's Oak Ridge National Laboratory describe a new tunneling state of...
Honeycomb structures as the basic building block for industrial applications presented using holo pyramid
Researchers of the Alfred Wegener Institute (AWI) will introduce their latest developments in the field of bionic lightweight design at Hannover Messe from 25...
Polymer solar cells can be even cheaper and more reliable thanks to a breakthrough by scientists at Linköping University and the Chinese Academy of Sciences (CAS). This work is about avoiding costly and unstable fullerenes.
Polymer solar cells can be even cheaper and more reliable thanks to a breakthrough by scientists at Linköping University and the Chinese Academy of Sciences...
As one of the leading R&D partners in the development of surface technologies and organic electronics, the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP will be exhibiting its recent achievements in vacuum coating of ultra-thin glass at SVC TechCon 2016 (Booth 846), taking place in Indianapolis / USA from May 9 – 13.
Fraunhofer FEP is an experienced partner for technological developments, known for testing the limits of new materials and for optimization of those materials...
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29.04.2016 | Life Sciences