Actuators are devices that convert electrical energy into mechanical energy, such as the battery-powered device inside a cell phone that causes the phone to vibrate. When this process is reversed -- when a device converts ...
Nanomaterials
Oct 8, 2010
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(PhysOrg.com) -- In an effort to develop wearable electronics, researchers have designed a new ultra-thin supercapacitor that has a capacitance that is six times higher than that of any current commercial supercapacitor. ...
Batteries might gain a boost in power capacity as a result of a new finding from researchers at MIT. They found that using carbon nanotubes for one of the battery's electrodes produced a significant increase — up to tenfold ...
Nanomaterials
Jun 20, 2010
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A technique originally, applied to monitor the flow of contaminants into shallow groundwater supplies, has been repurposed to monitor carbon dioxide pumped deep underground for storage.
Earth Sciences
Jun 2, 2010
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(PhysOrg.com) -- A team of Duke University chemists has perfected a simple way to make tiny copper nanowires in quantity. The cheap conductors are small enough to be transparent, making them ideal for thin-film solar cells, ...
Nanophysics
Jun 1, 2010
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(PhysOrg.com) -- Can graphene -- a newly discovered form of pure carbon that may one day replace the silicon in computers, televisions, mobile phones and other common electronic devices -- be made to bend, twist and roll?
Nanomaterials
Apr 21, 2010
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French scientists have transformed the chemical energy generated by photosynthesis into electrical energy. They thus propose a new strategy to convert solar energy into electrical energy in an environmentally-friendly and ...
Analytical Chemistry
Feb 18, 2010
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Fuel cells, devices that can produce electricity from hydrogen or other fuels without burning them, are considered a promising new way of powering everything from homes and cars to portable devices like cellphones and laptop ...
Nanomaterials
Oct 15, 2009
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Field-effect transistors (FETs) based on single-walled carbon nanotubes (SWNTs) exhibit a range of optoelectronic effects including near-infrared electroluminescence.
Nanophysics
Sep 8, 2009
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(PhysOrg.com) -- Mention of nanotubes usually means carbon nanotubes. But not all tiny tubes are made of carbon. For example, layers made of nanoscopic titanium dioxide have proven to be useful materials for biotechnology, ...
Nanomaterials
Sep 8, 2009
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