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Latest Piezoelectricity Stories

2011-07-20 12:00:00

DALLAS, July 20, 2011 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced the most highly integrated piezo haptic driver for mobile consumer and industrial designs. The DRV8662 features an integrated 105-V boost converter, power diode, and 50-V to 200-V peak-to-peak (Vpp) fully-differential amplifier, resulting in a solution size that is 50 percent smaller than leading competitors. The DRV8662 also lowers total solution cost by 40 percent compared to competing...

2011-03-29 19:48:15

Superlenses earned their superlative by being able to capture the "evanescent" light waves that blossom close to an illuminated surface and never travel far enough to be "seen" by a conventional lens. Superlenses hold enormous potential in a range of applications, depending upon the form of light they capture, but their use has been limited because most have been made from elaborate artificial constructs known as metamaterials. The unique optical properties of metamaterials, which include the...

2011-03-11 15:51:29

The droning of a car driving along the highway can be nerve-racking. Often, a driver cannot understand the passengers in the rear seat, not to mention the pianissimo on the car stereo. Actually, though, there are ways to drive this disruptive vibration out of the car. This is possible thanks to "smart materials" "“ intelligent materials that can tailor their own condition to changing situations with highest speed. The possible applications are diverse and promising "“ not just for...

2011-03-09 16:28:00

Rutgers researchers have identified a class of high-strength metal alloys that show potential to make springs, sensors and switches smaller and more responsive. The alloys could be used in springier blood vessel stents, sensitive microphones, powerful loudspeakers, and components that boost the performance of medical imaging equipment, security systems and clean-burning gasoline and diesel engines. While these nanostructured metal alloys are not new "“ they are used in turbine blades...

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2011-03-08 09:57:08

A key technical challenge of the joint ESA"“NASA LISA mission has been solved: how to maintain precise pointing of a laser beam across five million km of space. The next-decade Laser Interferometer Space Antenna (LISA) mission will look for ripples in spacetime "“ their existence predicted by Albert Einstein "“ known as gravitational waves. A trio of identical spacecraft will fly five million km apart in an equilateral triangle formation, linked by laser beams. A...

2011-02-22 12:30:00

NEW YORK, Feb. 22, 2011 /PRNewswire/ -- TBT Group Inc. will present at CleanEquity Monaco 2011; the conference is on March 3rd & 4th at the Sporting d'Hiver, Monaco. (Logo: http://photos.prnewswire.com/prnh/20110214/CL47472LOGO ) TBT Group Inc. was included, by expert selection, as one of the world's most inspiring cleantech companies, to present to industry-specific, senior financial and strategic investors, policy makers, legislators, end users and media. TBT is an innovative...

2011-01-26 12:58:07

Gallium nitride (GaN) and zinc oxide (ZnO) are among the most technologically relevant semiconducting materials. Gallium nitride is ubiquitous today in optoelectronic elements such as blue lasers (hence the blue-ray disc) and light-emitting-diodes (LEDs); zinc oxide also finds many uses in optoelectronics and sensors. In the past few years, though, nanostructures made of these materials have shown a plethora of potential functionalities, ranging from single-nanowire lasers and LEDs to more...

2010-11-18 14:37:40

The change-over to lead-free products is in full progress. The problem is however that the environmentally friendly alternatives have to be as effi cient as the lead-containing variants. One example is the injection system of diesel engines. Lead-free functional materials can be found faster by means of computer simulation methods. Technical progress in the automobile industry is unbroken. But, the sector has still some hard nuts to crack: "Lead-free materials" is one of the challenges...

2010-11-11 18:44:11

The KAIST and GIT team developed a power generation technology using bendable thin film nano-materials Can a heart implanted micro robot operate permanently? Can cell phones and tiny robots implanted in the heart operate permanently without having their batteries charged? It might sound like science fiction, but these things seem to be possible in the near future. The team of Prof. Keon Jae Lee (KAIST, Dept. of Materials Science and Engineering) and Prof. Zhong Lin Wang (Georgia Institute of...

2010-11-10 17:09:26

Using a neutron beam as a probe, researchers working at the National Institute of Standards and Technology (NIST) have begun to reveal the crystal structure of a compound essential to technologies ranging from sonar to computer memory. Their recent work* provides long-sought insight into just how a widely used material of modern technology actually works. The compound is a "piezoelectric," a material capable of changing one kind of energy into another"”mechanical to electrical, or vice...