Archive for category Piezoelectric

PZT Nanofibers Piezoelectric Generator Producing 1.6V Unveiled by SIT Scientist

Posted by Ovidiu in Piezoelectric on July 12, 2010

Dr. Yong Shi, from Stevens Institute of Technology has released a paper called “1.6 V Nanogenerator for Mechanical Energy Harvesting Using PZT Nanofibers.” He uses piezoelectric nanowire- and nanofiber-based generators that can convert mechanical energy into electricity.

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Piezo Shower: Newly Invented Piezoelectric Nanowires Used to Heat Water Through Friction

Posted by Ovidiu in Piezoelectric on April 28, 2010

The water that you unleash when you take a shower (with the “hot” knob closed) has two properties: pressure and temperature. You can change pressure, but to raise its temperature you usually need extra energy. Regularly, you don’t shower with the water knob turned to the maximum, so a certain extra pressure exists in the tubing, creating friction.

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Shoe-Embedded Flexible Polymer That Can Power Your Small Devices

Posted by Ovidiu in Piezoelectric on April 28, 2010

Dr. Ville Kaajakari, an assistant professor of electrical engineering at Louisiana Tech University has devised a small power generator that can be embedded in the sole of a shoe, to juice any kind of low-power device.

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Harvesting Energy From Small Vibrations for Use in Pacemakers and Implants

Posted by Ovidiu in Green Gadgets, Piezoelectric on March 24, 2010

University of Michigan researchers, at their Engineering Research Center for Wireless Integrated Microsystems, have just created highly efficient some energy-harvesting devices that use the energy from surrounding arbitrary, non-periodic vibrations.

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Zinc Oxide Crystal Acting as Piezoelectric Material To Get Hydrogen From Water

Posted by Ovidiu in Hydrogen Power, Piezoelectric on March 23, 2010

A team of researchers from the University of Wisconsin-Madison have just discovered that crystals of zinc oxide, if submerged, absorb its vibrations and act like a piezoelectric material, developing areas of strong negative and positive charges.

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New Piezoelectric Flexible Nanoribbons Prove 80% Efficient Conversion

Posted by Ovidiu in Piezoelectric on January 29, 2010

Pacemaker owners all over the world and other people in need of a reliable, small current source will surely be glad when they’ll hear that Princeton University scientists have developed an ultra-efficient (80%) piezoelectric system, able to transform mechanical work into electricity.

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Micro-Scaled Piezoelectric Device Harvests Electricity from Vibrations

Posted by Mike in Piezoelectric on January 1, 2010

The world we live is full of f vibrating surfaces like train stations, dance floors and highways that that could yield a rich trove of clean, eco-friendly energy. It is called piezoelectric energy, formed by the conversion of mechanical strain into electricity.

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Energy-Harvesting ‘Piezo-tree’ to Produce Renewable Energy

Posted by Mike in Piezoelectric on December 29, 2009

A team of scientists at the Cornell University have developed an energy harvesting “piezo-tree” that uses the flittering of leaves connected to a piezoelectric stem to generate electric energy.

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New MEMS Element Transforms Vibration Into 85μW of Electricity

Posted by Cristi in Piezoelectric on December 12, 2009

Two Europe based research institutes (IMEC and TNO), have developed a new MEMS element capable of converting vibration energy into electric power.

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Proof-of-Concept Piezoelectric Generators Used to Recover Energy from Wind

Posted by Ovidiu in Piezoelectric on November 24, 2009

City College of New York researchers, led by professor Yiannis Andreopoulos, are studying how to incorporate piezoelectric electricity generators into cars and planes, so they can convert the kinetic energy of motion into electricity.

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