Navigation Links
Splitsville for boron nitride nanotubes
Date:6/28/2011

rderliness could explain why a high proportion of the boron nitride nanoribbons display the coveted zigzag or armchair-shaped edges, rather than other edge orientations.

Edges are critical determinants of a nanoribbon's properties because the electrons along the edge of one ribbon edge can interact with the electrons along the edge of another ribbon, resulting in the type of energy gap that is crucial for making devices. For example, zigzagged edges in graphene nanoribbons have been shown to be capable of carrying a magnetic current, which makes them candidates for spintronics, the computing technology based on the spin rather than the charge of electrons.

Kris Erickson, who was the lead author on the Nano Letters paper, says that, "Given the significant dependence upon boron nitride nanoribbon edges for imbuing particular electronic and magnetic properties, the high likelihood of synthesizing ribbons with zigzag and armchair edges makes our technique particularly suitable for addressing theoretical predictions and realizing proposed applications."

Erickson also says it should be possible to functionalize the edges of the boron nitride nanoribbons, as these edges are terminated with chemically reactive potassium atoms following synthesis and with reactive hydrogen atoms following exposure to water or ethanol.

"The potassium-terminated edge could easily be replaced with a species other than hydrogen," Erickson says. "Different chemicals could be used for quenching to impart other terminations, and, furthermore, hydrogen could be replaced after quenching by either utilizing established boron nitride functionalization routes, or by devising new routes unique to the highly reactive nanoribbon edge."

Zettl and his research group are now investigating alternative syntheses using different boron nitride nanotube precursors to increase yields and improve the purification process. They are also attempting to functionalize the
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Anacor Achieves Milestone from GSK for Boron-Based Systemic Antibacterial Product Candidate
2. Sigma-Aldrich and the University of Illinois Offer New Boronic Acid Surrogates to Researchers Worldwide Through Licensing Agreement
3. Ultra fast photodetectors out of carbon nanotubes
4. Taming carbon nanotubes
5. Light touch brightens nanotubes
6. Using carbon nanotubes in lithium batteries can dramatically improve energy capacity
7. Cold atoms and nanotubes come together in an atomic black hole
8. Dip ordinary paper into ink infused with nanotubes and nanowires to create an instant battery
9. A recipe for controlling carbon nanotubes
10. Friction force differences could offer a new means for sorting and assembling nanotubes
11. Researchers enlist DNA to bring carbon nanotubes promise closer to reality
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Splitsville for boron nitride nanotubes
(Date:1/22/2015)... Calif. , Jan. 22. 2015  Varian Medical Systems (NYSE: ... software, has been honored for its commitment to sustainability with ... companies. Varian is the highest ranked healthcare equipment company among ... today during the World Economic Forum at Davos, ...
(Date:12/24/2014)... , Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... (NYSE: MDT ) has submitted a pre-market ... (FDA) for the use of Medtronic,s SynchroMed ® ... catheter) for use with United Therapeutics, Remodulin ® ...
(Date:12/24/2014)... “Preparative & Process Chromatography Market by ... Solvents, Buffers, Valves, Guages, Seals), Accessories, Services, End ... to 2019” provides a detailed overview of the ... and strategies impacting the preparative and process chromatography ...
(Date:12/24/2014)... December 23, 2014 On Friday, December ... the Omnibus and Continuing Resolution Appropriations Act of 2015, ... eligible to receive funding through the Congressionally Directed Medical ... (DoD). The Hydrocephalus Association (HA), working in conjunction with ...
Breaking Biology Technology:Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2
... overwhelming perspective on the biotech industry that says it has ... pump billions of research dollars without any return. As we ... trade on earnings like Big Pharma companies; they trade on ... 2005 sales and earning results are still not out for ...
... materials used to display information on cell phones, monitors ... report in real time on the differentiation of embryonic ... which embryonic stem cells gradually turn into function-specific types ... heart or brain cells. , ,The main challenge facing ...
... Can a Mac really be hacked in just 30 minutes? ... systems engineer, who criticized recent media reports for sensationalism after they ... of a computer gave out login accounts to potential hackers. , ... had been given access to the computer to take full control ...
Cached Biology Technology:The world's leading biotech companies 2The world's leading biotech companies 3Liquid crystals show promise in controlling embryonic stem cells 2
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... addition of the "Global Wearable Technologies Market ... Share, Overview, Trends and Forecast 2014-2020" report ... Technologies are smart devices that can be worn ...
(Date:12/24/2014)... Dec. 23, 2014  Since its launch in December 2014, the ... the pain of trying to remember their usernames and passwords ... to their smartphones. To assist people who have struggled to ... that created 1U and focuses on redefining identity, announced today ...
(Date:12/22/2014)... , Dec. 22, 2014  The 2014 Holiday Season ... as Acuity Market Intelligence reports that the long anticipated ... forecasts that intensifying demand for smart phones, tablets, and ... global market of 2.5 billion users with nearly 4.8 ...
Breaking Biology News(10 mins):Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2
... SITUATION: The largest living structures on Earth ... at risk, the most definitive review yet of the impact ... In a paper published in the prestigious Science Magazine today, ... race against time in preparing coral reefs and the coastal ...
... A pioneering study of wild chimpanzees has found that ... rebutting previous studies of captive individuals which had postulated ... 40 years of age. Together with recent data ... this week in the journal Current Biology -- suggests ...
... and Johns Hopkins University have uncovered another reason why ... is so dangerous. As reported in Nature Genetics ... of at least 13 microRNAs, small pieces of nucleic ... and off. Furthermore, in several instances, re-introducing repressed miRNAs ...
Cached Biology News:It's official: The carbon crisis is lethal for coral reefs 2It's official: The carbon crisis is lethal for coral reefs 3It's official: The carbon crisis is lethal for coral reefs 4Wild chimpanzees appear not to regularly experience menopause 2University of Pennsylvania researchers zero in on the tiniest members in the war on cancer 2