Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > IMEC reports record power for micromachined piezoelectric energy harvester

Piezoelectric energy harvesters.
Piezoelectric energy harvesters.

Abstract:
In the framework of Holst Centre, IMEC achieved a new record for micromachined piezoelectric energy harvesters, now delivering an output power of 60µW. The harvester can be realized with a simple, low-cost CMOS-compatible production process by using aluminum nitride (AlN) as piezoelectric material. The low resonance frequency of only 500Hz makes the device widely applicable. The output power of 60µW is sufficient to drive simple wireless sensors that intermittently transfer sensor readings to a master. Potential applications include tire pressure monitoring systems (TPMS) or monitoring of industrial equipment.

IMEC reports record power for micromachined piezoelectric energy harvester

Leuven, Belgium | Posted on October 14th, 2008

Energy harvesters convert ambient energy - light, heat, or vibrations - into electricity. They are indispensible in situations where batteries cannot be replaced easily. Examples are autonomous sensor networks that are distributed over large areas and in locations that are difficult to access. IMEC's new energy harvester is a micromachined device converting vibration energy through a piezoelectric transducer. It can be used to generate energy for sensors in, for example, planes, vehicles, or vibrating industrial equipment.

For the new harvester, an experimental output power of 60µW was measured with an input acceleration of 2g at a resonance frequency of 500Hz. It consists of a piezoelectric capacitor formed by a Pt electrode, an AlN piezoelectric layer and a top Al electrode. The capacitor is fabricated on a cantilever which has a mass on its tip. When the harvester vibrates, the mass on the cantilever causes the piezoelectric layer to be stretched, inducing an electrical power. The use of AlN as piezoelectric material makes the device compatible with CMOS processes, allowing production at a lower cost.

Last year, IMEC already showcased a piezoelectric harvester with a reported 40µW output power. But this device had a piezoelectric layer fabricated with PZT. The current AlN layer has the advantage that it can be made in a simpler deposition process. Moreover, the PZT device operated at 1.8kHz. The lower resonance frequency of the new harvester - 500 Hz - corresponds with vibration frequencies in, for example, industrial equipment or car tires. This greatly enlarges the field of application for this harvester.

####

About IMEC
IMEC is a world-leading independent research center in nanoelectronics and nanotechnology. IMEC vzw is headquartered in Leuven, Belgium, has a sister company in the Netherlands, IMEC-NL, offices in the US, China and Taiwan, and representatives in Japan. Its staff of more than 1600 people includes more than 500 industrial residents and guest researchers. In 2007, its revenue (P&L) was EUR 244.5 million.

IMEC’s More Moore research aims at semiconductor scaling towards sub-32nm nodes. With its More than Moore research, IMEC looks into technologies for nomadic embedded systems, wireless autonomous transducer solutions, biomedical electronics, photovoltaics, organic electronics and GaN power electronics.

IMEC’s research bridges the gap between fundamental research at universities and technology development in industry. Its unique balance of processing and system know-how, intellectual property portfolio, state-of-the-art infrastructure and its strong network worldwide position IMEC as a key partner for shaping technologies for future systems.

About Holst Centre

Holst Centre is an independent open-innovation R&D centre that develops generic technologies for Wireless Autonomous Transducer Solutions and for Systems-in-Foil. A key feature of Holst Centre is its partnership model with industry and academia around shared roadmaps and programs. It is this kind of cross-fertilization that enables Holst Centre to tune its scientific strategy to industrial needs.

Holst Centre was set up in 2005 by IMEC (Flanders, Belgium) and TNO (The Netherlands) with support from the Dutch Ministry of Economic Affairs and the Government of Flanders. It is named after Gilles Holst, a Dutch pioneer in Research and Development and first director of Philips Research.

Located on the High Tech Campus in Eindhoven, Holst Centre benefits from the state-of-the-art on-site facilities. Holst Centre has over 100 employees (growing to over 200 by 2010) and a commitment from over 15 industrial partners.

Visit us at www.holstcentre.com

For more information, please click here

Contacts:
IMEC
Katrien Marent
Corporate Communications Director
Tel +32 16 28 18 80
Mobile: +32 474 30 28 66


Holst Centre
Koen Snoeckx
Communication Manager
Tel +31 40 277 40 91
Mobile: +31 612 71 98 43

Copyright © IMEC

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster: University of Leicester research team unlocks insights into creation of new nano-materials July 25th, 2014

Scientists Test Nanoparticle "Alarm Clock" to Awaken Immune Systems Put to Sleep by Cancer July 25th, 2014

Discoveries

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

New imaging agent provides better picture of the gut July 25th, 2014

Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster: University of Leicester research team unlocks insights into creation of new nano-materials July 25th, 2014

Announcements

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster: University of Leicester research team unlocks insights into creation of new nano-materials July 25th, 2014

Scientists Test Nanoparticle "Alarm Clock" to Awaken Immune Systems Put to Sleep by Cancer July 25th, 2014

Energy

Oregon chemists eye improved thin films with metal substitution: Solution-based inorganic process could drive more efficient electronics and solar devices July 21st, 2014

Steam from the sun: New spongelike structure converts solar energy into steam July 21st, 2014

3-D nanostructure could benefit nanoelectronics, gas storage: Rice U. researchers predict functional advantages of 3-D boron nitride July 15th, 2014

Nanotechnology that will impact the Security & Defense sectors to be discussed at NanoSD2014 conference July 8th, 2014

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Nano-supercapacitors for electric cars July 25th, 2014

Compact Vibration Harvester Power Supply with Highest Efficiency Opens Door to “Fix-and-Forget” Sensor Nodes July 23rd, 2014

UCF Nanotech Spinout Developing Revolutionary Battery Technology: Power the Next Generation of Electronics with Carbon July 23rd, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE