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:5/26/2015)... 26, 2015 Innovacyn, a leader ... the human and animal health industries, announced today ... Innovators of Agriculture College Scholarship Award. The scholarship ... exhibits a passionate commitment to the agriculture industry ... year’s winners, Alexis Pedrow from Anderson County Jr/Sr ...
(Date:5/26/2015)... and HILDEN, Germany , May ... (NASDAQ: QGEN ; Frankfurt Prime Standard: QIA) ... Clinical Insight ® (QCI™) bioinformatics content and ... and report on genomic variants identified in next-generation ... the bioinformatics platform are in oncology, for somatic ...
(Date:5/26/2015)... Intrexon Corporation (NYSE: XON ), a leader in ... Senior Vice President and Head of Intrexon,s Health Sector, will ... June 3 rd , at 1:30 p.m. Eastern Time at ... . About Intrexon Corporation Intrexon Corporation ... Better DNA ™ to create biologically-based products that improve ...
(Date:5/26/2015)... Tianyin Pharmaceutical Inc. (NYSE Amex: TPI ... biopharmaceutical, modernized traditional Chinese medicine (mTCM), branded generics and ... Meeting of Shareholders for fiscal year ended June 30, ... Company,s office located in Chengdu, China ... time in Chengdu, China ) on ...
Breaking Biology Technology:Innovacyn Announces Winners Of This Year’s Vetericyn® College Scholarship Award 2Innovacyn Announces Winners Of This Year’s Vetericyn® College Scholarship Award 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 2QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 4QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 5Intrexon to Present at the Jefferies 2015 Global Healthcare Conference 2TPI Adjourned Its 2014 Annual Shareholder Meeting and Received Notice of Non-Compliance with NYSE MKT Continued Listing Requirements 2TPI Adjourned Its 2014 Annual Shareholder Meeting and Received Notice of Non-Compliance with NYSE MKT Continued Listing Requirements 3
... Corporation, a leading orthopaedic biomaterials company, announced today ... of Beta-bsm(TM) Injectable Paste and Gamma-bsm(TM) Moldable Putty ... Both products are bone substitute materials based on ... http://www.newscom.com/cgi-bin/prnh/20080424/NETH117LOGO ...
... 27 Spherix Incorporated (Nasdaq: SPEX ), ... provider of technical and regulatory consulting services to food, ... April 23, 2009, it received written notification from NASDAQ ... NASDAQ,s independent director rule. Spherix fell out of ...
... VOLC ), a leader in the development, manufacturing and ... and peripheral artery disease, today announced that it will report ... on Tuesday, May 5.The company will hold a conference call ... all interested parties at 2 p.m., Pacific Daylight Time (5 ...
Cached Biology Technology:ETEX Corporation Announces FDA Clearance of Small Size Beta-bsm(TM) Injectable Paste and Gamma-bsm(TM) Moldable Putty 2Spherix Recruiting New 'Independent' Director to Regain NASDAQ Compliance 2Spherix Recruiting New 'Independent' Director to Regain NASDAQ Compliance 3Volcano Corporation Schedules First Quarter Conference Call, Webcast 2
(Date:5/6/2015)... 2015 LifeBEAM, a developer of bio-sensing technology, ... today that they will expand their partnership in bio-sensing ... cycling helmet and the first joint project between the ... in order to give cyclists more style choices and ... and Lazer announced their plan to release a new ...
(Date:4/27/2015)... 27, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market, announces that ... customers the first week of May, 2015 and will ... May. Gino Pereira , Chief ... the company as Wocket® enters the consumer market. We ...
(Date:4/20/2015)... April 20, 2015 Huntington Memorial Hospital is ... implant a new miniaturized, wireless monitoring sensor to manage ... first and only FDA-approved heart failure monitoring device that ... used by physicians to manage heart failure. ... implanted in the pulmonary artery (PA) during a non-surgical ...
Breaking Biology News(10 mins):LifeBEAM and Lazer Announce Expanded Partnership in Bio-Sensing Sports Gear 2LifeBEAM and Lazer Announce Expanded Partnership in Bio-Sensing Sports Gear 3Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3
... , SAN FRANCISCO, CANovember 11, 2013What does it mean ... ultimately, in the billions of lines of genetic code ... been deciphering that code. But now, researchers at the ... stretches of DNA control the development of uniquely human ...
... led by bioengineers at the University of California, San Diego ... E. coli cells and individual neurons from the human ... technique that confines genome amplification to fluid-filled wells with a ... published in the journal Nature Biotechnology on November ...
... at the University of California, San Diego School of Medicine ... to govern regulated gene expression. The study was published on ... Nature Structural and Molecular Biology . "We uncovered ... RNA-binding proteins to induce a regulatory effect from ...
Cached Biology News:Fast-mutating DNA sequences shape early development; guided evolution of uniquely human traits 2Fast-mutating DNA sequences shape early development; guided evolution of uniquely human traits 3Single-cell genome sequencing gets better 2Single-cell genome sequencing gets better 3Un-junking junk DNA 2Un-junking junk DNA 3
Anti-Dynamin Monoclonal Antibody Description: 100 g Research Focus: neuroscience Storage: -20C Shipping Temperature: 4C...
cysteine and glycine-rich protein 2,...
BKBeta2 potassium channel Antigen: Fusion protein amino acids 1-41 (N-terminus) and 218-235 (C-terminus) of mouse BKBeta2 Accession Number: Q9CZM9...
Anti-CD74 Monoclonal Antibody Description: 200 l Research Focus: cell surface antigens Storage: 4C Shipping Temperature: 4C...
Biology Products: