All Articles Tagged As: nanowires
 | Nanowire mesh can absorb up to 20 times its weight in oil ...> Full Article |
 | Designer 'nanobatons' could be used to trap oil, deliver drugs ...> Full Article |
 | Thanks to nanostructures that scatter and channel light, electrical engineers are working toward thin-film "single junction" solar cells with the potential for nearly 45 percent sunlight-to-electricity conversion efficiencies. ...> Full Article |
 | Electrical engineers have created experimental solar cells spiked with nanowires that could lead to highly efficient thin-film solar cells of the future. ...> Full Article |
 | Fabrication technique could yield low-cost, scalable nanowire photonic and electronic circuits ...> Full Article |
 | New way of growing nanowires may be useful in high-performance integrated circuits, biosensors, solar cells, LEDs and lasers. ...> Full Article |
 | A new low-temperature, catalyst-free technique for growing copper nanowires has been developed ...> Full Article |
 | Engineers have created the first "active matrix" display using a new class of transparent transistors and circuits, a step toward realizing applications such as e-paper, flexible color monitors and "heads-up" displays in car windshields. ...> Full Article |
Scientists create robust quantum models to compare key characteristics of copper and CNTs
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 | Physicists have found that applying an electrical field on a surface-supported gold nanocluster changes its structure from a three-dimensional one to a planar flat structure. In another paper, they relate their discovery that gold in this size regime can be made magnetic through oxygenation of gold nanowires. They also found that up to a certain length, oxygenated gold nanowires behave as a conducting metal, but beyond that, they become insulators. This marks the first time on the nanoscale that such a metal-to-insulation transition has been found on the nanoscale. Both findings are important predictions that could some day be implemented as control parameters governing the chemical and physical material properties employed in nanotechnology. ...> Full Article |
 | For centuries, engineers have bent and torn metals to test their strength and ductility. Now, materials scientists at the University of Pennsylvania School of Engineering and Applied Science are studying the same metals but at nanoscale sizes in the form of wires a thousand times thinner than a human hair. This work has enable Penn engineers to construct a theoretical model to predict the strength of metals at the nanoscale. Using this model, they have found that, while metals tend to be stronger at nanoscale volumes, their strengths saturate at around 10-50 nanometers diameter, at which point they also become more sensitive to temperature and strain rate. Such prediction of different strength regimes of nano-solids is important for future application and engineering design of nanotechnology. ...> Full Article |
Integrated circuits, such as the silicon chips inside all modern electronics, are only as good as their wiring, but copper conduits are approaching physical performance limitations as they get thinner. Chipmakers have hoped that carbon "nanotubes" would allow them to continue using thinner wiring as they pack more devices into chips, but no one had demonstrated nanotube wires working on a conventional silicon chip. In a paper published online today by the journal Nano Letters, electrical engineers at Stanford University and Toshiba report using nanotubes to wire a silicon chip operating at speeds comparable to those of commercially available processors and memory.
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 | Millions of nearly invisible wires may hold the answer to making solar cells a more affordable source of alternative energy. ...> Full Article |
 | Energy now lost as heat during the production of electricity could be harnessed through the use of silicon nanowires synthesized via a technique developed by researchers with the U.S. Department of Energy's (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) at Berkeley. The far-ranging potential applications of this technology include DOE's hydrogen fuel cell-powered "Freedom CAR," and personal power-jackets that could use heat from the human body to recharge cell-phones and other electronic devices. ...> Full Article |
 | Researchers have found a way to use silicon nanowires to reinvent the rechargeable lithium-ion batteries that power laptops, iPods, video cameras, cell phones, and countless other devices. ...> Full Article |
 | Every minute, the Earth receives more energy from the sun than people burn up in fossil fuels in a full year. Virtually all of that free light and heat energy is unused, wasted. ...> Full Article |
 | University of Arkansas researchers have found a simple, inexpensive way to create a nanowire coating on the surface of biocompatible titanium that can be used to create more effective surfaces for hip replacement, dental reconstruction and vascular stenting. Further, the material can easily be sterilized using ultraviolet light and water or using ethanol, making it useful in hospital settings and meat-processing plants ...> Full Article |
In short time, nanotechnology has contributed greatly to scientific research. However, unknown about this popular and continuously emerging field are the environmental effects - particularly to aquatic life. A new study at the University of Missouri-Columbia will attempt to provide answers.
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