Navigation Links
New method for enhancing thermal conductivity could cool computer chips, lasers and other devices
Date:12/14/2011

The surprising discovery of a new way to tune and enhance thermal conductivity a basic property generally considered to be fixed for a given material gives engineers a new tool for managing thermal effects in smart phones and computers, lasers and a number of other powered devices.

The finding was made by a group of engineers headed by Deyu Li, associate professor of mechanical engineering at Vanderbilt University, and published online in the journal Nature Nanotechnology on Dec. 11.

Li and his collaborators discovered that the thermal conductivity of a pair of thin strips of material called boron nanoribbons can be enhanced by up to 45 percent depending on the process that they used to stick the two ribbons together. Although the research was conducted with boron nanoribbons, the results are generally applicable to other thin film materials.

An entirely new way to control thermal effects "This points at an entirely new way to control thermal effects that is likely to have a significant impact in microelectronics on the design of smart phones and computers, in optoelectronics on the design of lasers and LEDs, and in a number of other fields," said Greg Walker, associate professor of mechanical engineering at Vanderbilt and an expert in thermal transport who was not directly involved in the research.

According to Li, the force that holds the two nanoribbons together is a weak electrostatic attraction called the van der Waals force. (This is the same force that allows the gecko to walk up walls.)

"Traditionally, it is widely believed that the phonons that carry heat are scattered at van der Waals interfaces, which makes the ribbon bundles' thermal conductivity the same as that of each ribbon. What we discovered is in sharp contrast to this classical view. We show that phonons can cross these interfaces without being scattered, which significantly enhances the thermal conductivity," said Li. In addition, t
'/>"/>

Contact: David F Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. UCLA team develops highly efficient method for creating flexible, transparent electrodes
2. New method for producing precursor of neurons, bone and other important tissues from stem cells
3. Epitomics, Inc. Receives Notice of Allowance from the United States Patent and Trademark Office for a Novel Method for Identifying Differentially Expressed Proteins
4. NIST polishes method for creating tiny diamond machines
5. Americord Registry Presents Abstract on Stem Cell Collection Method at 2011 COSTEM Conference and AABB Meeting
6. Manufacturing method paves way for commercially viable quantum dot-based LEDs
7. Nottingham scientists pioneer new method for nanoribbon production
8. University of Houston develops method for creating single-crystal arrays of graphene
9. Combo method reveals cells signal systems
10. CU method projected to meet DOE cost targets for solar thermal hydrogen fuel production
11. OVA1 Blood Test Detects Ovarian Cancer More Accurately Than Medically Accepted CA 125 Method for Evaluating Women with Ovarian Mass
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New method for enhancing thermal conductivity  could cool computer chips, lasers and other devices
(Date:7/30/2014)... (PRWEB) July 30, 2014 Selexis ... for biologic drug discovery and mammalian cell line development, ... CHO-Mplus Libraries ™ will be presented at the 10th ... being held, September 8 – 10, 2014 at the ... , The following abstract will be presented during ...
(Date:7/30/2014)... BCC Research ( http://www.bccresearch.com ) reveals in its ... Applications , the global market for industrial enzymes is ... registering a five-year compound annual growth rate (CAGR) of ... the detergent enzyme segment with a CAGR of 11.3% ... almost every sector of industrial activity, ranging from technical ...
(Date:7/30/2014)... 30, 2014 Researchers often use microelectronic ... but such devices can do much more – ... such, researchers have looked to patterned assemblies of ... metabolic engineering to characterize – and potentially control ... are envisioned to recreate animal and human physiological ...
(Date:7/30/2014)... 2014 Connecticut Center for Advanced Technology, ... East Hartford, Conn., was awarded a Rural Business Enterprise ... project that will determine the feasibility of implementing an ... USDA Rural Development provided $53,000 for CCAT under the ... phase of the feasibility study in fiscal year 2014. ...
Breaking Biology Technology:Selexis SA to Present New Data and a Case Study at IBC’s Cell Line Development and Engineering Conference 2Selexis SA to Present New Data and a Case Study at IBC’s Cell Line Development and Engineering Conference 3Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 3UMD Researchers Bridge Gap between Microelectronics, Biological Systems 2UMD Researchers Bridge Gap between Microelectronics, Biological Systems 3UMD Researchers Bridge Gap between Microelectronics, Biological Systems 4USDA Grant Funds Second Phase of Bio-Energy Research Community Economic Development in CT 2USDA Grant Funds Second Phase of Bio-Energy Research Community Economic Development in CT 3
... Oct. 1 Maven Biotechnologies today announced that the ... Institute for Allergy and Infectious Disease (NIAID), part of ... TM imaging technology for label-free protein microarrays and ... Maven through the federal stimulus package initiative for Biomedical ...
... The Culex quinquefasciatus mosquito poses a significant ... elephantiasis-causing worms and encephalitis-inducing viruses. An international team of ... the SIB Swiss Institute of Bioinformatics sequenced its genome ... published in today,s issue of Science, describe results from ...
... 1 Vet-Stem, Inc. announced that Dr. Robert Harman, ... entitled "Stem Cell Therapy: Mechanisms of Action" at the ... Surgeons (ACVS) in Seattle, WA, October 21, 2010.   ... http://www.newscom.com/cgi-bin/prnh/20060425/VETSTEMLOGO ) Dr. Harman has presented ...
Cached Biology Technology:Maven Biotechnologies Receives $1.96 Million From the National Institutes of Health (NIH) to Develop Their LFIRE™ Label-Free Detection Technology for Proteomics 2Major disease-vector mosquito reveals the secrets of its immune system 2Vet-Stem CEO to Present Invited Talk at Veterinary Surgery Meeting 2
(Date:7/30/2014)... Sciences Institute (SALSI), a joint venture between The University ... of Texas Health Science Center at San Antonio, has ... The winners, Emily Boice from UTSA and Lei Huang ... their project titled, "Novel engineered ferritins for tracking and ... and Huang,s research is focused on finding a treatment ...
(Date:7/30/2014)... associate professor Andrew S. Mount, performed cutting-edge research on ... novel anti-fouling paint for ships and boats and also ... team,s findings, published in Nature Communications ... attaches to a wide variety of surfaces using highly ... underwater heavy-duty adhesive. , "In previous research, we were ...
(Date:7/30/2014)... pests, shrinking ranges and a changing climate threaten ... important plants, and so conservationists establish seed collections ... gardens in hopes of preserving some genetic diversity., ... by simple models that offer a one-size-fits-all approach ... recommending saving 50 seed samples regardless of species, ...
Breaking Biology News(10 mins):Study: Marine pest provides advances in maritime anti-fouling and biomedicine 2Saving seeds the right way can save the world's plants 2
... researchers are part of a nationwide team preparing to open ... genome of the single living sister species to all other ... a large shrub found only on the South Pacific island ... diversified over time and provide insight into the key processes ...
... The Ohio State University and Ohio Supercomputer Center ... develop a computer tool that researchers, government leaders and ... in energy-related technology, policy and pricing. Researchers will ... for Energy Pricing and Policy (ICS-EPP), which models the ...
... PHILADELPHIA The American Association for Cancer Research congratulates 12 ... Medicine. They are among the 65 new members and five ... the fields of health and medicine, the award recognizes individuals ... in the fields of health and medicine. "This ...
Cached Biology News:UF to help sequence genome of flowering plants' ancient living relative 2UF to help sequence genome of flowering plants' ancient living relative 3NSF grant to study national energy policy and technology impacts 2The AACR congratulates its members elected to the Institute of Medicine 2
... thermal cycler is a compact instrument for gene ... tubes, 12 x 0.5 ml tubes, or a ... a thumbwheel to adjust height and pressure to ... heat pumps provide excellent thermal performance, and the ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
... with SR-101 Labeled Substrates (red fluorescence; ... measure serine protease activation • No ... FLISP Kits utilize cell-permeable, fluorescently labeled ... measure chymotrypsin-like activity in whole living ...
... MitoPT kit is used in conjunction with your ... and induce apoptosis according to your existing procedure ... a negative control). Once you have induced apoptosis ... to each population and incubate the cells for ...
Biology Products: