Navigation Links
Diamonds, nanotubes find common ground in graphene
Date:5/28/2013

What may be the ultimate heat sink is only possible because of yet another astounding capability of graphene. The one-atom-thick form of carbon can act as a go-between that allows vertically aligned carbon nanotubes to grow on nearly anything.

That includes diamonds. A diamond film/graphene/nanotube structure was one result of new research carried out by scientists at Rice University and the Honda Research Institute USA, reported today in Nature's online journal Scientific Reports.

The heart of the research is the revelation that when graphene is used as a middleman, surfaces considered unusable as substrates for carbon nanotube growth now have the potential to do so. Diamond happens to be a good example, according to Rice materials scientist Pulickel Ajayan and Honda chief scientist Avetik Harutyunyan.

Diamond conducts heat very well, five times better than copper. But its available surface area is very low. By its very nature, one-atom-thick graphene is all surface area. The same could be said of carbon nanotubes, which are basically rolled-up tubes of graphene. A vertically aligned forest of carbon nanotubes grown on diamond would disperse heat like a traditional heat sink, but with millions of fins. Such an ultrathin array could save space in small microprocessor-based devices.

"Further work along these lines could produce such structures as patterned nanotube arrays on diamond that could be utilized in electronic devices," Ajayan said. Graphene and metallic nanotubes are also highly conductive; in combination with metallic substrates, they may also have uses in advanced electronics, he said.

To test their ideas, the Honda team grew various types of graphene on copper foil by standard chemical vapor deposition. They then transferred the tiny graphene sheets to diamond, quartz and other metals for further study by the Rice team.

They found that only single-layer graphene worked well, and sheets
'/>"/>

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Going negative pays for nanotubes
2. Carbon Nanotubes (CNT) for Electronics & Electrics 2013-2023: Forecasts, Applications, Technologies
3. Quantum computers counting on carbon nanotubes
4. NISTs nanotubes on a chip may simplify optical power measurements
5. Cloning could make structurally pure nanotubes for nanoelectronics
6. USC scientists clone carbon nanotubes to unlock their potential for use in electronics
7. Low-resistance connections facilitate multi-walled carbon nanotubes for interconnects
8. Strengthening fragile forests of carbon nanotubes for new MEMS applications
9. Stanford engineers perfecting carbon nanotubes for highly energy-efficient computing
10. Unzipped carbon nanotubes could help energize fuel cells and batteries, Stanford scientists say
11. Sensing the infrared: Researchers improve IR detectors with single-walled carbon nanotubes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... New Rochelle, N.Y. (PRWEB) August 21, 2014 ... it is the first private college in the Mid-Hudson ... The College will now begin accepting applications from qualified ... , “We are very pleased to have been ... to support Governor Cuomo’s transformative initiative to stimulate economic ...
(Date:8/21/2014)... NEW YORK , Aug. 21, 2014 /PRNewswire/ ... OTCM) congratulates Immune Pharmaceuticals Inc., a biotechnology company, ... Capital Market.  Immune previously traded on OTCQX®, the ... operated by OTC Markets Group. Logo - ... Immune Pharmaceuticals on the successful execution of its ...
(Date:8/21/2014)... 21, 2014 Pursuit Solutions ( ... technology and services for Life Sciences sales and ... Use of New Commercial Sales Models” by Peter ... , The article examines some innovative models used ... being tested in the pharmaceutical market. Robinson grades ...
(Date:8/21/2014)... SoundConnect , a unified communication ... of the nation’s Fastest Growing Private Companies by ... consecutive year. Inc. magazine today ranked SoundConnect NO. ... exclusive ranking of the nation's fastest-growing private companies. ... the most important segment of the economy—America’s independent ...
Breaking Biology Technology:The College of New Rochelle Becomes First Private College in Mid-Hudson Region to Earn START-UP NY Designation 2The College of New Rochelle Becomes First Private College in Mid-Hudson Region to Earn START-UP NY Designation 3OTC Markets Group Congratulates Immune Pharmaceuticals on NASDAQ Listing 2Pursuit's Peter Robinson Publishes "Grading Pharma's Use of New Commercial Sales Models" 2SoundConnect Returns on Inc. 5000 List of Fastest Growing Companies 2SoundConnect Returns on Inc. 5000 List of Fastest Growing Companies 3
... biometrics company enabling applications for the real ... with Methode Electronics, Inc. One of the ... being a solid Tier 1 automotive supplier ... devices. Together, Methode and Lumidigm will bring ...
... ... alternatives, WALTHAM, Mass., Aug. 5 ... Company is focusing its,day-to-day operations exclusively on obtaining financing or consummating ... Company,s employees were released from employment, except,for Shawn Cain, the Company,s ...
... to Curb Unsafe Sex and Drug, Use ... Response, MEXICO CITY, Aug. 5 In a ... calls on global leaders to aggressively,expand HIV prevention programs ... use. Citing hundreds of clinical trials and,observational studies, the ...
Cached Biology Technology: Lumidigm Signs Strategic Agreement with Methode Electronics : Automotive Supplier Invests in Biometric Component Development 2Arbios Announces It Has Suspended Operations 2Arbios Announces It Has Suspended Operations 3Arbios Announces It Has Suspended Operations 4Arbios Announces It Has Suspended Operations 5Leading AIDS Experts Urge Greater Focus on Behavior-Change Programs to Prevent HIV 2Leading AIDS Experts Urge Greater Focus on Behavior-Change Programs to Prevent HIV 3Leading AIDS Experts Urge Greater Focus on Behavior-Change Programs to Prevent HIV 4
(Date:8/21/2014)... A new study of American singles found that ... the highest orgasm rates. On average, men experience ... sexual orientation making little difference. For women, however, ... experience orgasm 62.9 percent of the time during ... pattern varies with women,s sexual orientation, with lesbian ...
(Date:8/21/2014)... linked to dandruff, eczema and other itchy, flaky maladies ... global reachesincluding Hawaiian coral reefs and the extreme environments ... review in the scientific journal PLOS Pathogens ... of the genus Malassezia in light of ... around the world. , University of Hawai,i at Mānoa ...
(Date:8/21/2014)... a finding that has implications for life in other ... the solar system, LSU Associate Professor of Biological Sciences ... Science Foundation, or NSF, this week published a paper ... that lies 800 meters (2600 feet) beneath the surface ... ecosystems.", Given that more than 400 subglacial lakes and ...
Breaking Biology News(10 mins):Orgasm rates for single women less predictable than men's, vary by sexual orientation 2Orgasm rates for single women less predictable than men's, vary by sexual orientation 3Orgasm rates for single women less predictable than men's, vary by sexual orientation 4From dandruff to deep sea vents, an ecologically hyper-diverse fungus 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 3800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 4
... tomorrow at NJIT from 8:30 a.m. - 4 p.m. ... secure schools, health and transportation facilities, protect customs, borders ... Presenters will include NJ State Police, Customs ... and Preparedness, U.S. Coast Guard and NJ Department of ...
... The discovery of a protein involved in the life-threatening ... the Florida State University College of Medicine attract a ... Branko Stefanovic, associate professor in the department of ... discovery could lead to treatment methods that may stem ...
... available in German . A group ... for Infection Research (HZI) in Braunschweig points out a ... myxobacteria, the substances prevent an enzym of the pathogens ... this way, the propagation of bacteria such as ...
Cached Biology News:FSU researcher's discovery leads to $1.5 million grant, potential new treatment of liver fibrosis 2New antibiotic candidates from Braunschweig 2New antibiotic candidates from Braunschweig 3
... using many of the automation concepts from ... requirements are similar to those for HTS: ... 24 or 48 wells with well volumes ... the number of wells has increased to ...
... One-Step Kit is the ultimate in ... It has been specifically designed to ... Reverse-iT™ One-Step Kit combines the unique ... Thermoprime Plus DNA Polymerase to provide ...
... Immunogen: Synthetic Peptide: M(1) E F L ... P P T M D L E(19) PA1-072 ... cells.,PA1-072 has been successfully used in Western blot ... an ~86 kDa protein representing Mint3 from AtT20 ...
Custom LNA Oligonucleotide synthesis ,High quality Custom LNA Oligonucleotides are available for a variety of different specialty applications and innovative products. ,Please inquire for further...
Biology Products: