Arranging polymer nanotubes in a vertical array enhances piezoelectric properties for acoustic sensors
An array of hollow piezoelectric polymer nanotubes grown by A*STAR researchers could be used as an extremely sensitive acoustic sensor.
An array of hollow piezoelectric polymer nanotubes grown by A*STAR researchers could be used as an extremely sensitive acoustic sensor.
Nanophysics
Nov 4, 2015
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Disturbing a material's crystal lattice can create a charge imbalance that leads to a voltage across the material. This phenomena, called the "piezoelectric effect," was first demonstrated in 1880 by Jacques and Pierre Curie ...
Condensed Matter
Sep 30, 2015
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Ricoh today announced that it has created a novel flexible material that converts pressure and vibration into electric energy with high efficiency.
Materials Science
May 20, 2015
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The generation of electrical charges in response to mechanical deformation is a distinctive feature of piezoelectric materials. This property can be used to avoid mechanical stresses in special materials. A project currently ...
Engineering
Mar 30, 2015
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A plastic used in filters and tubing has an unusual trait: It can produce electricity when pulled or pressed. This ability has been used in small ways, but now researchers are coaxing fibers of the material to make even more ...
Polymers
Mar 26, 2015
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A sophisticated necklace developed by researchers at the UCLA Henry Samueli School of Engineering and Applied Science can monitor food and drink intake, which could help wearers track and improve their dietary habits.Â
Engineering
Mar 13, 2015
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68
A door has been opened to low-power off/on switches in micro-electro-mechanical systems (MEMS) and nanoelectronic devices, as well as ultrasensitive bio-sensors, with the first observation of piezoelectricity in a free standing ...
Nanophysics
Dec 22, 2014
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0
(Phys.org) —Piezoelectric materials, which produce electricity in response to mechanical stress, account for a $12 billion global industry that is projected to grow at a rate of 13.2% per year, according to a recent report ...
The trend toward energy self-sufficient probes and ever smaller mobile electronics systems continues unabated. They are used, for example, to monitor the status of the engines on airplanes, or for medical implants. They gather ...
Engineering
Oct 27, 2014
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Researchers from Columbia Engineering and the Georgia Institute of Technology report today that they have made the first experimental observation of piezoelectricity and the piezotronic effect in an atomically thin material, ...
Nanophysics
Oct 15, 2014
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