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:9/30/2014)... Md. , Sept. 30, 2014  RegeneRx ... today announced that it has received a Canadian ... by Actin-Sequestering Peptides.  This patent includes claims using ... numerous other actin-sequestering peptides for these purposes.  The ... About RegeneRx Biopharmaceuticals, Inc. ( www.regenerx.com ) ...
(Date:9/30/2014)... Switzerland (PRWEB) September 30, 2014 ... software solutions for drug discovery and related ... FUNGITECT consortium has chosen Genedata Selector as ... sequencing (NGS) data. FUNGITECT is a European ... invasive fungal diseases via individualized anti-fungal drug ...
(Date:9/30/2014)... and ROCKVILLE, Md., Sept. 30, 2014 ... focusing on commercializing market-relevant biohealth innovations and increasing access ... , announced today that venture capitalist, Tania Fernandez ... strategic advisor. Dr. Fernandez will be a member of ... which will provide up to $50 million in seed ...
(Date:9/30/2014)... -- The overall research objective was to capture ... use. Most researchers outsource NGS technologies; however, in-house ... the next 12 months. Data accuracy and operating ... instruments. Disease-related research is the dominant use for ... surge, with half of the respondents planning to ...
Breaking Biology Technology:RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 3Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2Global Next-generation Sequencing Trends 2
... 2011 Clinicians now have a new tool to help ... -- one of the most common sexually transmitted infections in ... BD (Becton, Dickinson and Company), announced today that it received ... first fully automated molecular tests to detect and differentiate HSV ...
... 2011 The Japanese nuclear crisis has caused a ... not only in Japan, but as far away as ... iodide does not provide generalized radiation protection because it ... bombarded with orders as the radiation hysteria mounts. ...
... (Nasdaq: VRML ) – Vermillion, a molecular ... coverage March 23, 2011 on Vermillion. This ... at Stephens by contacting, Scott Gleason at scott.gleason@stephens.com ... Vermillion, Inc. is dedicated to the discovery, development and ...
Cached Biology Technology:BD Diagnostics Receives FDA Clearance for First Fully Automated Molecular Assays for HSV1 and HSV2 from Clinician-Collected External Anogenital Lesion Specimens 2Shortages of Potassium Iodide as Radiation Panic Drives Demand 2Stephens Initiates Coverage on Vermillion 2Stephens Initiates Coverage on Vermillion 3
(Date:9/30/2014)... you want your doctor to know what goes wrong with ... good idea to know what "normal" actually is. That,s where ... of the FASEB Journal comes in. ... transcriptomea key set of molecules that can help scientists "see" ... time. What,s more, they found never-before-detected gene activity and that ...
(Date:9/30/2014)... threats in today,s ocean. From overfishing and pollution ... ecosystems are disappearing at unprecedented rates around the ... surrounding the island of Moorea in French Polynesia ... coral guard-crabs. New research from the National Museum ... McKeon and the museum,s predoctoral fellow Jenna Moore ...
(Date:9/29/2014)... that the exposure to tar tended to be lower ... Similarly, exposure to nicotine tended to be lower. ... cigarette in several countries around the world. Previous studies ... in the smoke of these cigarettes are lower than ... chemicals in the smoke are not necessarily linked to ...
Breaking Biology News(10 mins):Scientists identify which genes are active in muscles of men and women 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Slim cigarette smokers not exposed to more harmful chemicals 2
... of Salamanca and another from Yale University have shown that ... beershebensis , a lizard species from the Negev Desert in ... less and catch less mobile and different prey if they ... predicted this result, but until now there had been very ...
... National Primate Research Center, Emory University, have successfully ... step toward unlocking the genetic secrets of pair ... will enable scientists to perform a host of ... mechanisms of social bonding and other complex social ...
... is available in German . , Brown adipose ... mitochondria, miniature power stations which among other things can ,burn, ... that of a battery, which then provides energy for cellular processes. ... They go full steam ahead all the time. The energy released ...
Cached Biology News:Lizards change their diet to avoid predators 2Yerkes researchers create first transgenic prairie voles 2Brown fat cells make 'spare tires' shrink 2
... Motic's B3 series of microscopes offer ... microscope required for laboratory work. Equipped with ... Super Contrast (ASC) objectives. The B3 is ... The Siedentopf binocular tube eliminates the need ...
... SYBR Green II RNA gel ... gel stain that has bright fluorescence when ... gels, making it ideal for use with ... scanners or standard UV transilluminators. A 500 ...
... SYBR Green II RNA gel stain ... has bright fluorescence when bound to RNA and ... use with either formaldehyde/agarose or polyacrylamide gels using ... stains 100 minigels. A 500 µL unit size ...
... Glutathion-S-transferases (GST) are a group ... the detoxification processes. The GSTs are ... Pi, Teta and microsomal. The classes ... and s Sample Size: ...
Biology Products: