Navigation Links
Heated AFM tip allows direct fabrication of ferroelectric nanostructures on plastic
Date:7/18/2011

aid Suenne Kim, the paper's first author and a postdoctoral fellow in laboratory of Professor Elisa Riedo in Georgia Tech's School of Physics.

Ferroelectric materials are attractive because they exhibit charge-generating piezoelectric responses an order of magnitude larger than those of materials such as aluminum nitride or zinc oxide. The polarization of the materials can be easily and rapidly changed, giving them potential application as random access memory elements.

But the materials can be difficult to fabricate, requiring temperatures greater than 600 degrees Celsius for crystallization. Chemical etching techniques produce grain sizes as large as the nanoscale features researchers would like to produce, while physical etching processes damage the structures and reduce their attractive properties. Until now, these challenges required that ferroelectric structures be grown on a single-crystal substrate compatible with high temperatures, then transferred to a flexible substrate for use in energy-harvesting.

The thermochemical nanolithography process, which was developed at Georgia Tech in 2007, addresses those challenges by using extremely localized heating to form structures only where the resistively-heated AFM tip contacts a precursor material. A computer controls the AFM writing, allowing the researchers to create patterns of crystallized material where desired. To create energy-harvesting structures, for example, lines corresponding to ferroelectric nanowires can be drawn along the direction in which strain would be applied.

"The heat from the AFM tip crystallizes the amorphous precursor to make the structure," Bassiri-Gharb explained. "The patterns are formed only where the crystallization occurs."

To begin the fabrication, the sol-gel precursor material is first applied to a substrate with a standard spin-coating method, then briefly heated to approximately 250 degrees Celsius to drive off the organic
'/>"/>

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

0

GOOD

Page: 1 2 3 4

Related biology technology :

1. Stretching single molecules allows precision studies of interacting electrons
2. Angiotech launches e-commerce website that allows customers to order Quill(TM) SRS product line
3. New technique allows simultaneous tracking of gene expression and movement
4. New Dual Wavelength X-ray Diffractometer From Oxford Diffraction, Now a Part of Varian, Inc., Allows Increased Throughput for Challenging Single Crystal Analyses
5. Genesis Biopharma Names David Voyticky to Board of Directors
6. Genesis Biopharma Director William H. Andrews, Ph.D., Profiled in Popular Science Feature Story
7. Mitchel Sayare, Ph.D. to Succeed John Pappajohn as Chairman of the Companys Board of Directors
8. Saladax Biomedical, Inc. Announces Appointment of Gregory C. Critchfield, M.D., M.S. as Chairman of the Companys Board of Directors
9. OXIS International Names Healthcare Industry Entrepreneur David Saloff to Board of Directors
10. Imagenetix, Inc. Appoints Bill Toomey to Its Board of Directors
11. Dr. Joel Posener Joins PharmaNet as Executive Medical Director, Neuroscience
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Heated AFM tip allows direct fabrication of ferroelectric nanostructures on plastic
(Date:5/17/2013)... Toronto, Canada (PRWEB) May 17, 2013 ... to understanding complex biological systems that can help predict ... Keynote speaker Dr. Sergey Stepaniants, Head of Computational Biology ... of computational biology tools to ensure high-quality genomics when ... tools can be applied to complex data sets to ...
(Date:5/17/2013)... 17, 2013 Tooth decay is an epidemic ... signs of the disease. The World Health Organization says that ... of adults have cavities. What are the long-term effects of ... a strong connection between the oral bacterial imbalance and serious ... so rampant, yet it is also 100% preventable? Answer: there ...
(Date:5/16/2013)... New Zealand (PRWEB) May 16, 2013 In ... was invited to speak to doctors in China about ... Australia and NZ, this was her first trip to lecture ... Dr. Hart visited Guangzhou and Fuzhou, home to 12 and ... in China is very high at this point in time. ...
(Date:5/16/2013)...  HealthSparq, a trusted provider of healthcare transparency ... health plans, will debut a new benchmark study ... 2013 conference on June 13.  The presentation will ... insurance companies across the country are thinking about ... for increased healthcare transparency. This ...
Breaking Biology Technology:Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 2Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 3HealthSparq to Reveal New Healthcare Transparency Benchmark Study at AHIP Institute 2013 2HealthSparq to Reveal New Healthcare Transparency Benchmark Study at AHIP Institute 2013 3
... May 14 Spherix Incorporated (Nasdaq: SPEX ... a provider of technical and regulatory consulting services to ... it will exhibit at the 2009 BIO International Conference ... New Diabetes and Obesity Control Drug" booth will showcase ...
... Oncothyreon Inc. (NASDAQ: ONTY ) (TSX: ONY) (the ... $0.13 per basic and diluted share for the quarter ended ... million or $0.26 per basic and diluted share for the ... primarily the result of the transfer of manufacturing activities for ...
... 14 The Philadelphia area-based probiotics firm Kibow Biotech ... invited to present at the BIO 2009 Company Forum, ... GA on Tuesday, May 19. BIO is the world,s ... services for more than 1,200 member companies and institutions ...
Cached Biology Technology:Spherix to Exhibit at the BIO 2009 International Convention 2Oncothyreon reports first quarter 2009 financial results 2Oncothyreon reports first quarter 2009 financial results 3Oncothyreon reports first quarter 2009 financial results 4Oncothyreon reports first quarter 2009 financial results 5Kibow Biotech, Inc. to Present at BIO 2009 International Convention: Innovations to Heal, Fuel, and Feed the World 2Kibow Biotech, Inc. to Present at BIO 2009 International Convention: Innovations to Heal, Fuel, and Feed the World 3Kibow Biotech, Inc. to Present at BIO 2009 International Convention: Innovations to Heal, Fuel, and Feed the World 4
(Date:5/17/2013)... finds human-caused climate change may have little impact ... host of recent studies that predict their widespread ... findings, which appear in the journal Global ... of a creature thought to be doomed: ... animals, especially forest lizards, will be hard hit ...
(Date:5/16/2013)... (Maximizing Access to Research Careers) Program has announced ... (ENDO) 95th Annual Meeting in San Francisco, CA ... to promote the entry of students, postdoctorates and ... the basic science community and to encourage the ... Annual Meeting. , Awards are given to poster/platform ...
(Date:5/16/2013)... a gene involved in neurodegenerative disease also plays a ... clock. , In a study of the common ... keeps the clock responsible for sleeping and waking on ... the fruit fly,s sleep-wake cycle is disturbed, making waking ... , The discovery is particularly interesting because mutations ...
Breaking Biology News(10 mins):Climate change may have little impact on tropical lizards 2Gene involved in neurodegeneration keeps clock running 2
... A global collaborative has produced a first draft ... that will lead to insights in agriculture, medicine, conservation ... farm at the University of Illinois will now be ... had their genomes sequenced. Researchers will announce the achievement ...
... / - PDC Biotech GmbH (PDC) today announced the ... Verwaltungs AG (Munich) and Edmond de Rothschild Investment Partners (Paris) co-led ... used to complete preclinical work and the first clinical study of ... for the treatment of preterm labour and primary dysmenorrhea . ...
... 2009) -- A husband and wife team of American paleontologists has ... ago during the early Cretaceous of central Montana. The new ... of the Canadian Journal of Earth Sciences . Ankylosaurs are ... a plate-like armour with two sets of sharp spikes on each ...
Cached Biology News:First draft of the pig: Researchers sequence swine genome 2First draft of the pig: Researchers sequence swine genome 3PDC Biotech GmbH Announces Close of Series A Financing 2PDC Biotech GmbH Announces Close of Series A Financing 3New dinosaur species from Montana 2
Mixing speed from 750-3200RPM, small vortexing orbit of1.0mm...
Request Info...
Autoclavable, variable volumefitted w./ an anti-drip safety valve; borosilicate glass barrelprotected with transparentpolypropylene sleeve; spring-lock cursor design ensuresfine adjustment for exact ...
Spaced cover glasses to promote effective hybridization...
Biology Products: