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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The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.
Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
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