carbon nanotubes Archive

carbon nanotubesMass production of new class of carbon nanotube semiconductors is close

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University of Waterloo chemists have found a way to simultaneously control the orientation and select the size of single-walled carbon nanotubes deposited on a surface. That means the developers of semiconductors can use carbon as opposed to silicon, which will …

carbon nanotubesTwisted carbon nanotubes can harvest energy and store 250 watts per kilogram

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An international research team led by scientists at The University of Texas at Dallas and Hanyang University in South Korea has developed high-tech yarns that generate electricity when they are stretched or twisted. Researchers describe “twistron” yarns and their possible …

carbon nanotubesSpiders exposed to water with graphene make triple strength spider silk

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A research team, led by Professor Nicola Pugno at the University of Trento, Italy, succeeded in having their spiders produce silk with up to three times the strength and ten times the toughness of the regular material. This could pave …

carbon nanotubesCarbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

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Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers Light-matter quasi-partic­les can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University (Germany) and the University of St Andrews (Scotland) …

3dNew 3-D carbon nanotube chip combines computing and data storage

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Instead of relying on silicon-based devices, a new 3D chip uses carbon nanotubes, which are sheets of 2-D graphene formed into nanocylinders, and resistive random-access memory (RRAM) cells, a type of nonvolatile memory that operates by changing the resistance of …

carbon nanotubesCarbon nanotube reinforce Composites can reduce space vehicle mass by 30%

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NASA’s Space Technology Mission Directorate (STMD) is keenly interested in nanotechnology – an approach that can reduce the mass and improve the performance of aerospace systems. NASA computer modeling analysis has shown that composites using carbon nanotube reinforcements could lead …

carbon nanotubesIBM has made Carbon nanotubes transistors smaller and faster than silicon

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IBM scientists have made carbon nanotube transistors smaller and faster silicon transistors. Carbon nanotube transistors have long had the potential to be better than silicon, but this is the first time when that promise has been realized. Now IBM and …

carbon nanotubesTransformer-like Carbon Nanostructure

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A recent study, affiliated with UNIST has engineered a new type of carbon nanomaterials, capable of changing shapes and colors depending on the type of solvents used. Such materials have attracted much attention owing to their unique optical properties and …

carbon nanotubes5G technology is being tested outdoors as it moves toward deployment in early 2020s

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5G should be 10 to 20 times faster than today’s cell-phone networks. 5G will operate in a high-frequency portion of the radio spectrum, known as millimeter wave. It has a lot of available bandwidth and should make it possible for …

brainNew brain implant design is meant to restore vision to the blind

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Experiments that let a paralyzed person swig coffee using a robotic arm, or that let blind people “see” spots of light, have proven the huge potential of computers that interface with the brain. But the implanted electrodes used in such …