Navigation Links
Triboelectric generator produces electricity by harnessing friction between surfaces
Date:7/9/2012

ir gap that isolates the charge on the PDMS surface and forms a dipole moment.

If an electrical load is then connected between the two surfaces, a small current will flow to equalize the charge potential. By continuously rubbing the surfaces together and then quickly separating them, the generator can provide a small alternating current. An external deformation is used to press the surfaces together and slide them to create the rubbing motion.

"For this to work, you have to use to two different kinds of materials to create the different electrodes," Wang explained. "If you rub together surfaces made from the same material, you don't get the charge differential."

The technique could also be used to create a very sensitive self-powered active pressure sensor for potential use with organic electronic or opto-electronic systems. The force from a feather or water droplet touching the surface of the triboelectric generator produces a small current that can be detected to indicate the contact. The sensors can detect pressure as low as about 13 millipascals.

Because the devices can be made approximately 75 percent transparent, they could potentially be used in touch screens to replace existing sensors. "Transparent generators can be fabricated on virtually any surface," said Wang. "This technique could be used to create very sensitive transparent sensors that would not require power from a device's battery."

While smooth surfaces rubbing together do generate charge, Wang and his research team have increased the current production by using micro-patterned surfaces. They studied three different types of surface patterning lines, cubes and pyramids and found that placing pyramid shapes on one of the rubbing surfaces generated the most electrical current: as much as 18 volts at about 0.13 microamps per square centimeter.

Wang said the patterning enhanced the generating capacity by boosting the amount of charge formed, im
'/>"/>

Contact: John Toon
jtoon@gatech.edu
404-894-6986
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Ultra-fast photodetector and terahertz generator
2. A new imaging system produces 3-D models of monuments using unmanned aircraft
3. New magnetic yeast marks step toward harnessing Natures magnetic capabilities
4. Penn and Brown researchers demonstrate earthquake friction effect at the nanoscale
5. Slippery when stacked: NIST theorists quantify the friction of graphene
6. Innovative MetaMorph® NX Software Shatters Barriers Between Researchers and Image Analysis Goals with Exclusive Visual Workflow
7. EveryDayMatters.com Aims to Raise Awareness and Coordinate Care Between Mental and Physical Health
8. Researchers Find Potential Link Between Drinking Alcohol And Breast Cancer
9. Collaboration between Sanofi and Joslin Diabetes Center to focus on new drugs for diabetes
10. How ion bombardment reshapes metal surfaces
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Triboelectric generator produces electricity by harnessing friction between surfaces
(Date:1/22/2015)... 22, 2015 Controlled Substance Compliance Services ... helps companies check the legal requirements around using controlled ... China. , As their international operations expand and ... software solutions built as a result of the first ...
(Date:1/22/2015)... ALTO, Calif. , Jan. 22. 2015  Varian Medical Systems ... and software, has been honored for its commitment to sustainability ... sustainable companies. Varian is the highest ranked healthcare equipment company ... announced today during the World Economic Forum at ...
(Date:12/24/2014)... DALLAS and NEW YORK , ... a biopharmaceutical company advancing patient care in critical areas, announced ... of common stock, and warrants to purchase up to an ... of $4.00 per share and $.01 per warrant.  The warrants ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 Earlier this year ... Sherley, director of the Adult Stem Cell Technology Center, LLC ... under appreciated unique property of adult tissue stem cells. ... the Past, Important for the Future,” embodied the essence of ...
Breaking Biology Technology:Global Compliance Service for Controlled Substances to Expand to China 2Varian Honored Among World's 100 Most Sustainable Corporations 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4
... Oct. 1 CorVel Corporation,(Nasdaq: CRVL ), ... announced the addition of over 150,000 facility and,provider ... November 1, 2007. The new provider network additions ... Health Plan (IHP) headquartered,in St. Petersburg, FL. ...
... Oct. 1 Biomaxx Systems Inc. (Other,OTC: BMXSF), ... our membership,with Bioenergy Australia for 2007. BioMaxx Systems ... in Australia as a result of,our involvement with ... forum established in 1997 to promote renewable,energy solutions. ...
... Software Is Cost-Effective, Time-Saving, ATLANTA, Oct. ... launch of CliniCom(TM), a revolutionary software platform,designed ... possible,psychiatric conditions. CliniCom(TM), an intuitive, computer ... in mental health settings, gathers information,directly from ...
Cached Biology Technology:CorVel Corporation Medical Provider Network Adds New Providers to Increase Savings and Improve Access to Care 2CorVel Corporation Medical Provider Network Adds New Providers to Increase Savings and Improve Access to Care 3Biomaxx Systems Inc. Renews Membership With Bioenergy Australia 2Harmonex Introduces CliniCom(TM), a Breakthrough in Psychiatric Intake and Assessment Technology 2Harmonex Introduces CliniCom(TM), a Breakthrough in Psychiatric Intake and Assessment Technology 3
(Date:12/11/2014)... Research and Markets , ... announced the addition of the "Biometrics Market in ... One major trend emerging in this market is ... utilize more than one characteristic of an individual for ...
(Date:12/11/2014)... , Dec. 10, 2014  Data Sciences International (DSI), ... released a new series of digital telemetry implants ... researchers. M series, part of the PhysioTel™ Digital ... best possible physiologic data when incorporating functional endpoints ...
(Date:12/10/2014)... a leader in performance biometric data sensor technology, today ... licensees for highly accurate, clinically validated biometric technology. This ... fitness and health sectors, but first responders/military and gaming ... as useful as the biometric data it delivers. As ...
Breaking Biology News(10 mins):Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... doctor for a blood test generally has to wait a ... can make patients anxious especially in critical cases, such ... so long for laboratories to analyze samples is in no ... must be accompanied by meticulous records, so lab technicians are ...
... Md. (March 1, 2012)The American Physiology Society (APS) has announced ... experimental animals and the sex or gender of humans used ... 13 peer-reviewed journals. This notable requirement for all research study ... be presented in an editorial, " In Pursuit of Scientific ...
... are working to protect living fossil trees in Fiji from ... Dr Peter Prentis, from QUT,s Science and Engineering Faculty, ... diversity is generated. "Fiji is a hotspot for biodiversity. ... anywhere else in the world," he said. "My project ...
Cached Biology News:'Labor der Zukunft' -- Tomorrow's laboratory technology 2'Labor der Zukunft' -- Tomorrow's laboratory technology 3APS issues new policy requiring identification of sex or gender in reporting scientific research 2APS issues new policy requiring identification of sex or gender in reporting scientific research 3Protecting living fossil trees 2
SDS-OutT Precipitation Reagent...
... The new FLA-5000 imaging ... and radioisotopic samples as large ... resolutions as low as 25 ... suitable for protein electrophoresis in ...
SDS-OutT SDS Precipitation Reagent...
... Disposable, clear, APET plastic tray. Ideal for ... those trays used for multipurposes. Pour spouts ... A marker or label may be used ... trays on rockers or shakers for staining ...
Biology Products: