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:5/21/2015)... May 21, 2015  The EveryLife Foundation for ... (R-UT) and Amy Klobuchar (D-MN) today ... Cures & Treatments, or OPEN ACT. ... advocacy organizations, this bipartisan legislation promises to rapidly ... to rare disease patients by incentivizing drug makers ...
(Date:5/21/2015)... Patent Offering, The patent’s technology pertains to ... imaging within a body lumen (open space). Known ... low cost, single-use disposable illumination and camera module (housing). ... 2013 and the patent approval was received on January ... customize the lighting and magnification of the endoscope for ...
(Date:5/21/2015)... , May 20, 2015 Research and Markets ... addition of the "2015 Global Survey on ... offering. The primary goal of this ... cytometry instruments and reagents. Key information the survey ... selection of flow cytometers, predominantly used applications for ...
(Date:5/21/2015)... Tunnell Consulting, Inc. today ... senior statistician and Principal, a position to which she ... management and analysis of complex and large data sets ... “We’re delighted to have Julia join the Tunnell team ... Dr. Philippe Cini, Group Vice President and leader of ...
Breaking Biology Technology:Advocates Cheer Senate Leaders for Introducing Bipartisan Bill to Increase Number of Rare Disease Treatments 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 3Global Survey on Flow Cytometry Adoption Trends 2015 2Julia O’Neill Joins Tunnell Consulting’s Operational and Process Improvement Practice 2
... employees were recognized,for their significant contributions to industry ... Dinner held May 1, 2008. Honored were Jennifer ... Sherrie,Pietranico-Cole, Ph.D., research leader, Discovery Chemistry., "These ... They have,made outstanding contributions to the company,s success, ...
... May 2 GlaxoSmithKline plc (GSK),announced today that ... commencing a cash tender offer to purchase all,outstanding ... SIRT ) (Sirtris), for $22.50 in cash ... tender offer is being made pursuant to a,previously ...
... in Motion Preservation, MARQUETTE, Mich., May 2 ... medical devices, announced today the,successful human implantation of ... Cervical Arthroplasty Device. The surgeries were,performed by Drs. ... Beijing China, on,patients with degenerative disc disease (DDD) ...
Cached Biology Technology:Two Roche Women Honored as 2008 Tribute to Women and INdustry Awardees 2Two Roche Women Honored as 2008 Tribute to Women and INdustry Awardees 3GlaxoSmithKline Commences Tender Offer to Acquire Sirtris Pharmaceuticals 2GlaxoSmithKline Commences Tender Offer to Acquire Sirtris Pharmaceuticals 3Pioneer(R) Surgical Technology Announces First Human Implants of its NuNec(TM) Cervical Arthroplasty Device 2
(Date:5/5/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... market, reminds investors and media that  Mr. David Tunnell ... SECURE CONNEXIONS AMERICA 2015, held in Washington DC ... conference is organized into a series of nine session tracks. ... Fraud: Where is the Trust in Cyberspace? and will ...
(Date:4/27/2015)... , Apr. 27, 2015 NXT-ID, Inc. ... biometric authentication company focused on the growing mobile commerce ... shipping to pre-order customers the first week of May, ... the month of May. Gino ... significant milestone for the company as Wocket® enters the ...
(Date:4/21/2015)... , April 21, 2015 ... government policies are boosting access control systems market in ... According to a recently published report by TechSci Research ... ", the access control systems market in ... billion by 2020.The access control systems market in the ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 3Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3
... cancer cells increases dramatically when they are blasted with ... fundamental insights into how cancer cells die, published in ... The images reveal the physical changes that ... a result of Photodynamic Therapy (PDT). This cancer treatment ...
... Studies by veterinary researchers at Kansas State,University, with ... States, first vaccine against E. coli ... so much to focus on the post-harvest food ... salmonella," said Dan Thomson of,K-State,s College of Veterinary ...
... pandemic proportions, causing premature death through heart attacks, strokes and ... decades, scientists have battled at length over its cause yet ... blame? This month, Experimental Physiology hosts ... the first ever published dialogue on the topic, Drs Montani ...
Cached Biology News:A sticky business -- how cancer cells become more 'gloopy' as they die 2K-State researchers help Epitopix license the United States' first E. coli O157 vaccine for cattle 2Is it really only our kidneys that control blood pressure? 2
DNA Purification...
... Rat adult normal paraffin tissue array ... or proteins of interest in extensive ... Rat brain, heart, kidney, liver, ... are arrayed on positively charged glass ...
EPH electrode, anode, 1. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
LIVE/DEAD® Sperm Viability Kit *200-1000 assays*...
Biology Products: