Navigation Links
Bottom-up approach provides first characterization of pyroelectric nanomaterials
Date:1/8/2013

By taking a "bottom-up" approach, researchers at the University of Illinois at Urbana-Champaign have observed for the first time that "size does matter" in regards "pyroelectricity"the current/voltage developed in response to temperature fluctuations that enables technologies such as infrared sensors, night-vision, and energy conversion units, to name a few.

"Controlling and manipulating heat for applications such as waste heat energy harvesting, integrated cooling technologies, electron emission, and related functions is an exciting field of study today," explained Lane Martin, an assistant professor of materials science and engineering at Illinois. "Traditionally, these systems have relied on bulk materials, but future nanoscale devices will increasingly require ferroelectric thin films.

"Measuring the pyroelectric response of thin films is difficult and has restricted the understanding of the physics of pyroelectricity, prompting some to label it as 'one of the least-known properties of solid materials'," Martin added. "This work provides the most complete and detailed modeling and experimental study of this widely unknown region of materials and has direct implications for next generation devices."

Researchers found that reducing the dimensions of ferroelectrics increases their susceptibility to size- and strain-induced effects. The group's paper, "Effect of 90-degree domain walls and thermal expansion mismatch on the pyroelectric properties of epitaxial PbZr0.2Ti0.8O3 thin films," appears in the journal Physical Review Letters.

"What we did in this work was to develop a new approach to utilize and understand a class of materials important for all of these applications," Martin said. "By moving to a 'bottom-up' approach that produces nanoscale versions of these materials as thin films, we have observed, for the first time, that certain features, namely domain walls, can be incredibly important and even dominate th
'/>"/>

Contact: Lane Martin, Ph.D.
lwmartin@illinois.edu
217-244-9162
University of Illinois College of Engineering
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Trudeau Institute Awarded Grant to Investigate a New Approach to Treating Illnesses Caused by Weaponized and Antibiotic-Resistant Bacteria
2. ViThera Novel Approach Using Probiotics to Deliver Elafin Shows Promise as a Future Inflammatory Bowel Disease (IBD) Treatment
3. ARMGO Pharma, Inc. announces data which supports its Rycal program as a novel approach for the treatment of stress-induced cognitive disorders
4. New Approach to Growing Waste to Value Industry in United States
5. A Genetic Approach For Crohns And Colitis Disease Is Financed By The Jeffrey Epstein VI Foundation
6. Discovery in Nature elucidates immune cells in skin and supports novel vaccine approach
7. Array BioPharma Provides Updates On Clinical Data At The 2012 American Society Of Hematology Meeting
8. Bayer CropScience Provides a Glimpse of SeedGrowth™ Innovation
9. Organovo Reports Q3 2012 Financial Results, Provides Business Update
10. Tengion Provides Business Update and Reports Third Quarter 2012 Financial Results
11. OncoGenex Pharmaceuticals, Inc. Provides Clinical Development Update and Reports Financial Results for Third Quarter 2012
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... Although most natural and synthetic processes prefer to ... potential or energyit is within the realm of ... experience constant changes in energy and phases, such ... These conditions allow humans to regulate their body ... rumble with seismic activity. , But even ...
(Date:7/24/2014)... July 24, 2014  CorMedix Inc. (NYSE MKT: ... commercializing therapeutic products for the prevention and treatment ... of notice on July 18, 2014 from the ... accepted the CorMedix plan to regain compliance with ... result, the NYSE-MKT is continuing the Company,s listing ...
(Date:7/24/2014)... balances – 4 steps – One Recommendation: the web-based ... narrows down the mass of product choices to a ... , First, select the working environment, then enter the ... define the accuracy – it’s really that simple. Specifying ... to models that fit best with the customer’s industry ...
(Date:7/24/2014)... NJ (PRWEB) July 24, 2014 As ... manage numerous projects in the MENA region during 2014 ... have a preferred provider agreement with DZS to manage ... MENA region,” said Global VP of R&D and President ... has developed excellent operational practices with a focus on ...
Breaking Biology Technology:New approach to form non-equilibrium structures 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3SBI Pharmaceuticals Co. Ltd. Enters into Preferred Provider Agreement with DZS Clinical Services 2
... Microsoft chairman and chief software architect Bill Gates talked ... industry when he stopped in their classroom during his ... included in the tour, which is promoting greater youth ... Communications. Photo by Jeff Miller , ...
... Wis. - These are not your parents' generation ... "cool" was rarely heard to cross the lips of ... commodity. The problem is that Wisconsin doesn't yet have ... dozen representatives of business, civic, academic and arts groups ...
... Madison, Wis. - The 53 Wisconsin companies that ... Business Innovation Research (SBIR) and Small Business Technology Transfer ... recognized at an upcoming banquet in Madison. , ,The ... technology transfer workshop. The workshop will focus on SBIR/STTR ...
Cached Biology Technology:Gates displays software's future to UW-Madison students 2Gates displays software's future to UW-Madison students 3Gates displays software's future to UW-Madison students 4Tech leaders call for more creativity 2
(Date:7/24/2014)... ply silent freeways, solar panels blanket rooftops and power ... howling winds and from the blazing desert sun. , ... and economically feasible to convert California,s all-purpose energy infrastructure ... Energy , the plan shows the way to ... that could create tens of thousands of jobs and ...
(Date:7/24/2014)... at Albert Einstein College of Medicine of ... J. Fox Foundation for Parkinson,s Research to translate a ... This drug discovery project will test chemical compounds on ... a drug that acts on an underlying cause of ... help many people manage their symptoms, we are eager ...
(Date:7/24/2014)... hazard in the United States, wildland managers often utilize ... suppressed trees (ladder fuels). These cuttings and other ... fire danger in order to dispose of the material. ... managers often cover all or part of the debris ... agricultural plastic, in order to keep water out. A ...
Breaking Biology News(10 mins):Stanford study shows how to power California with wind, water and sun 2Stanford study shows how to power California with wind, water and sun 3Stanford study shows how to power California with wind, water and sun 4Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 2Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 3Study gives new perspective on agricultural plastic, debris burning, and air quality 2
... the National Consortium for Data Science (NCDS) aims to ... and data science research, a move that will help ... the data-driven global economy. The consortium, ... University of North Carolina at Chapel Hill, unites data ...
... reveals that age matters when it comes to adapting to ... insight and understanding of the likely impact of predicted environmental ... the journal Global Change Biology scientists from British ... the Alfred Wegener Institute reveal that when it comes to ...
... An international team of researchers has decoded the genome ... and illuminating: the African coelacanth. A sea-cave dwelling, five-foot ... thought to be extinct. A living coelacanth was discovered ... questions about these ancient-looking fish popularly known as ...
Cached Biology News:National consortium to lead North Carolina in big data innovation 2National consortium to lead North Carolina in big data innovation 3Age matters to Antarctic clams 2Coelacanth genome surfaces 2Coelacanth genome surfaces 3Coelacanth genome surfaces 4
MagSi uniform silica particles coated with a carboxyl group containing polymer, covalently attached to the bead surface....
Antibeta-lactoglobulin monoclonal antibody(CD-2)...
MAb to Vasopressin Preservative: NaN3...
... α, clone 8G8/5 GenBank Accession Number ... human AP-2alpha/gamma fusion protein corresponding to residues ... of human AP-2γ Formulation: 0.1M Tris-glycine, pH ... the addition of glycerol to 30% Quality ...
Biology Products: