Navigation Links
Boston College, MIT researchers achieve dramatic increase in thermoelectric efficiency
Date:3/20/2008

y alloy means the discovery can quickly be applied to a range of uses, leading to higher cooling and power generation efficiency.

By using nanotechnology, we have found a way to improve an old material by breaking it up and then rebuilding it in a composite of nanostructures in bulk form, said Boston College physicist Zhifeng Ren, one of the leaders of the project. This method is low cost and can be scaled for mass production. This represents an exciting opportunity to improve the performance of thermoelectric materials in a cost-effective manner.

These thermoelectric materials are already used in many applications, but this better material can have a bigger impact, said Gang Chen, the Warren and Towneley Rohsenow Professor of Mechanical Engineering at MIT and another leader of the project.

At its core, thermoelectricity is the hot and cool issue of physics. Heating one end of a wire, for example, causes electrons to move to the cooler end, producing an electric current. In reverse, applying a current to the same wire will carry heat away from a hot section to a cool section. Phonons, a quantum mode of vibration, play a key role because they are the primary means by which heat conduction takes place in insulating solids.

Bismuth antimony telluride is a material commonly used in thermoelectric products, and the researchers crushed it into a nanoscopic dust and then reconstituted it in bulk form, albeit with nanoscale constituents. The grains and irregularities of the reconstituted alloy dramatically slowed the passage of phonons through the material, radically transforming the thermoelectric performance by blocking heat flow while allowing the electrical flow.

In addition to Ren and six researchers at his BC lab, the international team involved MIT researchers, including Chen and Institute Professor Mildred S. Dresselhaus; research scientist Bed Poudel at GMZ Energy, Inc, a Newton, Mass.-based company formed by Ren, Chen,
'/>"/>

Contact: Ed Hayward
ed.hayward@bc.edu
617-552-4826
Boston College
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Boston Scientific to Explore Sale of Cardiac Surgery and Vascular Surgery Businesses
2. Vicus Therapeutics to Present at the 234th American Chemical Society National Meeting in Boston, MA
3. Boston Scientific Amends Credit Facility and Prepays $1 Billion on Loan
4. Boston Scientific to Participate in the Bear Stearns 20th Annual Healthcare Conference
5. Revolutionary Genomics Research Group Opens Boston Office; Provides DNA Evidence in Workers Comp Cases
6. Boston Scientific Announces Election of Ray Elliott to Its Board of Directors
7. Alliance for Medical Devices, Instrumentation and Diagnostics formed between Fraunhofer Center for Manufacturing Innovation and Boston University
8. Boston Scientific Releases Remote Monitoring Data from its Wireless LATITUDE(R) Patient Management System
9. Genzyme Begins Major Expansion of Boston Manufacturing Facility
10. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
11. Boston Scientific to Webcast Conference Call Discussing Third Quarter Financial Results
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Boston College, MIT researchers achieve dramatic increase in thermoelectric efficiency
(Date:10/30/2014)... Spartan Bioscience announced today that Health Canada has ... detects CYP2C19 genetic mutations in less than 60 minutes ... CYP2C19 System is the first near-patient DNA test for ... to the system’s ease of use, Health Canada has ... such as doctors, nurses, pharmacists, and laboratory technicians, in ...
(Date:10/30/2014)... Calif. , Oct. 30, 2014 Isis Pharmaceuticals, ... therapeutics, today announced that management will present a company overview ... at 8:30 a.m. ET in Boston, MA. ... be available on the "Investors & Media" section of the ... on the Isis website within 48 hours and will be ...
(Date:10/30/2014)... (Oct. 29, 2014) – The severe flooding that devastated ... been less destructive if the bridges, roads and other ... new study from the University of Colorado Denver. , ... infrastructure," said Jimmy Kim, PhD, associate professor of structural ... Applied Science and lead author the study. "There is ...
(Date:10/27/2014)... and TORONTO , Oct. 27, ... ) (OTCQB: GNBT) today announced two presentations demonstrating ... by its novel proprietary cancer immunotherapeutic AE37 vaccine ... cancer patients. The AE37 cancer vaccine is being ... Inc. ( www.antigenexpress.com ). The presentations are being ...
Breaking Biology Technology:Health Canada approves first near-patient DNA test for personalized medicine 2Health Canada approves first near-patient DNA test for personalized medicine 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2CU Denver study says upgrading infrastructure could reduce flood damage 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4
... , WILMINGTON, Delaware, November ... Cell and Advanced Technologies Market, (2009 - 2014),published ... in the global stem cell market. It identifies ... for the various,products, services, technologies, and applications submarkets ...
... -- (Nov. 2, 2009) -- Rice University scientists today ... carbon-nanotube fibers that could lead to revolutionary advances in ... a nine-year program, the method builds upon tried-and-true processes ... plastics. The research is available online in the journal ...
... Nov. 2 BioBehavioral Diagnostics Company announced today that ... it was accepted via a rigorous peer-review process and ... Annual Meeting of the American Academy of Child and ... 2009. Calvin R. Sumner, M.D., the company,s Chief Medical ...
Cached Biology Technology:MarketsandMarkets: Global Stem Cell and Advanced Technologies Market Worth US$ 88.3 Billion By 2014 2MarketsandMarkets: Global Stem Cell and Advanced Technologies Market Worth US$ 88.3 Billion By 2014 3Breakthrough in industrial-scale nanotube processing 2Breakthrough in industrial-scale nanotube processing 3Breakthrough in industrial-scale nanotube processing 4Objective Measures of ADHD Symptoms Using the Quotient(TM) ADHD System May Reduce Cost of ADHD Drug Trials 2Objective Measures of ADHD Symptoms Using the Quotient(TM) ADHD System May Reduce Cost of ADHD Drug Trials 3Objective Measures of ADHD Symptoms Using the Quotient(TM) ADHD System May Reduce Cost of ADHD Drug Trials 4
(Date:10/29/2014)... Mich. – As bodies decompose, their types and ... clues they provide could mean the difference between ... Michigan State University is using a more than ... Detroit death-scene investigators examine these changing populations. The ... geographical location of death, gender, race, socioeconomic relations ...
(Date:10/29/2014)... in the living world compete with members of ... how much they invest into their competitive ability. ... get access to high-quality resources, while others seem ... the lower-quality resources that are left over for ... and human societies seems to fluctuate considerably over ...
(Date:10/28/2014)... release is available in German . ... relatives, the chimpanzees, acquire sufficient food when times are ... Park in Côte d,Ivoire researchers of the Max Planck ... clear example of how great apes can acquire extra ... that chimpanzees make their sleeping nests more en route ...
Breaking Biology News(10 mins):MSU partners with Detroit to investigate death scenes 2Evolution of competitiveness 2Evolution of competitiveness 3The early chimp gets the fig 2The early chimp gets the fig 3
... Damselfish are killing head corals and adding stress ... poor condition from global climate change, coral diseases, hurricanes, ... favorite homestead, will take the pressure off the other ... online journal PLoS ONE . The small, ...
... miles of the nation,s infrastructure of water ... of its useful life, but the mostly ... attention because of this "invisibility," said Sunil ... and environmental engineering (CEE). http://www.cee.vt.edu/index.php?do=view&content=0&apps=2&level=2&id=17&pid=b024555fa7f439a27509de488a7b5749 ...
... most likely to occur on Sunday, in less than 6 ... wearing black and white bathing suits, a first of its ... analyzed statistics from shark attacks that occurred in Florida,s Volusia ... 1956 and 2008. They also spent a year observing people ...
Cached Biology News:Distressed damsels stress coral reefs 2Efforts underway at Virginia Tech to address deterioration of nation's water pipes 2Case study analyzes why, where and when of leading shark attack site 2Case study analyzes why, where and when of leading shark attack site 3
... Clarin represents the state-of-the-art in ... for the permanent preservation of immunohistochemical ... (DAB), Vega Red, New Fuchsin, and ... substrates on tissue sections. Clarin can ...
... Gene Inspector can perform many sophisticated DNA analysis ... much more than just another sequence analysis product. ... suite of analyses to be performed each time ... custom style sheets which specify exactly how your ...
... columns is a well-known separation technique in ... are in DNA/RNA extraction in microbiology, viral ... in chemical or analytical laboratories. ,This ... series instruments for smaller scales. The extraction ...
... is a revolutionary new application for ... a novel interface, Expression makes complex ... simple. Expression uses the very latest ... in the way sequences are analysed. ...
Biology Products: