Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > New hybrid carbon material discovered

Abstract:
New hybrid carbon material, which combines both graphene and SWNTs, Graphene Nanoribbons encapsulated into Single-Walled Carbon Nanotubes have been discovered by researchers from Aalto University (Finland) and Umea University.

New hybrid carbon material discovered

Finland | Posted on September 21st, 2011

Carbon nanotubes and graphene materials have attracted enormous interest from a broad range of specialists.

- We came up with the idea to create a novel hybrid material, which combines two most fascinating carbon nanomaterials - single-walled carbon nanotubes and grapheme, says Doctor Albert Nasibulin from Aalto University.

SWNTs have a hollow space inside, which was used in this study as an 1-dimensional chemical reactor. An intriguing property of this space is that chemical reactions occur differently compared to the bulk 3D conditions. Large polyaromatic hydrocarbon molecules (coronene and perylene), which can be imagined as small pieces of graphene, were used as building blocks to produce long and narrow graphene nanoribbons inside the nanotubes.

It was found that the shape of encapsulated graphene nanoribbons can be modified by using different kinds of polyaromatic hydrocarbon molecules. Nanoribbons can be either metallic or semiconductor depending on their width and type. Interestingly, SWNTs can also be metallic, semiconducting (depending on their chirality) or insulating when chemically modified.

This creates enormous potential for a wide range of applications: Now we can prepare in all possible combinations. For example, metallic nanoribbon inside insulating nanotube can be considered as the thinnest insulated nanowire. Nanoribbons can be used directly inside of SWNTs to generate light (e.g. as light emitting diodes), which will easily go through nanotubes and GNRs and by using of existing energy barrier will became a nano-lamp. Semiconducting nanoribbons can be used for transistor or solar cell applications. Metalli-metallic combination is in fact a new kind of coaxial nanocables (widely used as transmitters of radio signals) in nanosize since the nanoribbons are not connected with nanotubes due to hydrogen atoms, which occupy all the edges of nanoribbons.

- Precise control of the width and angle of the graphene nanoribbons will help assembly materials based on graphene with strict control of the band gap. Such control is not possible for a macroscopic graphene, obtained by traditional technology, says Dr. Ilya Anoshkin.

The method of synthesis is very simple, easily scalable and allows to obtain almost 100% filling of tubes with nanoribbons. As it follows from theoretical results included in the paper, graphene nanoribbons should keep their unique properties inside of nanotubes while protected from environment by encapsulation and aligned within bundles of SWNTs.

####

For more information, please click here

Contacts:
Dr Albert Nasibulin

358-503-397-538

Copyright © Aalto University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Tissue regeneration using anti-inflammatory nanomolecules August 22nd, 2014

A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy August 22nd, 2014

Ultra-short pulse lasers & Positioning August 21st, 2014

Malvern’s Dr Alan Rawle talks TLAs in plenary lecture at Particulate Systems Analysis conference August 21st, 2014

Graphene

Graphene may be key to leap in supercapacitor performance August 20th, 2014

Ultrasonic Waves Applied in Production of Graphene Nanosheets August 20th, 2014

Graphene rubber bands could stretch limits of current healthcare, new research finds August 19th, 2014

New test reveals purity of graphene: Rice, Osaka scientists use terahertz waves to spot contaminants August 13th, 2014

Display technology/LEDs/SS Lighting/OLEDs

LEDs made from ‘wonder material’ perovskite: Colourful LEDs made from a material known as perovskite could lead to LED displays which are both cheaper and easier to manufacture in future August 5th, 2014

Martini Tech Inc. becomes the exclusive distributor for Yoshioka Seiko Co. porous chucks for Europe and North America July 20th, 2014

Carbodeon enables 20 percent increase in polymer thermal filler conductivity with 0.03 wt.% nanodiamond additive at a lower cost than with traditional fillers: Improved materials and processes enable nanodiamond cost reductions of up to 70 percent for electronics and LED app July 9th, 2014

'Nano-pixels' promise thin, flexible, high resolution displays July 9th, 2014

Chip Technology

Electrical engineers take major step toward photonic circuits: Team invents non-metallic metamaterial that enables them to 'compress' and contain light August 19th, 2014

Promising Ferroelectric Materials Suffer From Unexpected Electric Polarizations: Brookhaven Lab scientists find surprising locked charge polarizations that impede performance in next-gen materials that could otherwise revolutionize data-driven devices August 18th, 2014

AI Technology (AIT) Introduces Novel High Temperature Large Area Underfill with Proven Stress Absorption August 15th, 2014

Iranian Scientists Stabilize Protein on Highly Stable Electrode Surface August 14th, 2014

Nanotubes/Buckyballs

Iranian Scientists Stabilize Protein on Highly Stable Electrode Surface August 14th, 2014

SouthWest NanoTechnologies Appoints Matteson-Ridolfi for U.S. Distribution of its SMW™ Specialty Multiwall Carbon Nanotubes August 13th, 2014

Immune cells get cancer-fighting boost from nanomaterials August 13th, 2014

SouthWest NanoTechnologies Inc. Announces $2.7 Million in New Financing to Fund Growth, Plant Expansion and Technical Personnel August 11th, 2014

Discoveries

Tissue regeneration using anti-inflammatory nanomolecules August 22nd, 2014

A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy August 22nd, 2014

Shaping the Future of Nanocrystals: Berkeley Lab Researchers Obtain First Direct Observation of Facet Formation in Nanocubes August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

Announcements

Tissue regeneration using anti-inflammatory nanomolecules August 22nd, 2014

A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy August 22nd, 2014

Malvern’s Dr Alan Rawle talks TLAs in plenary lecture at Particulate Systems Analysis conference August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

Research partnerships

A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy August 22nd, 2014

Сalculations with Nanoscale Smart Particles August 19th, 2014

Promising Ferroelectric Materials Suffer From Unexpected Electric Polarizations: Brookhaven Lab scientists find surprising locked charge polarizations that impede performance in next-gen materials that could otherwise revolutionize data-driven devices August 18th, 2014

Nano Bonds Increase Raw Strength of Fireproof Concretes August 18th, 2014

Solar/Photovoltaic

Eco-friendly 'pre-fab nanoparticles' could revolutionize nano manufacturing: UMass Amherst team invents a way to create versatile, water-soluble nano-modules August 13th, 2014

An Inkjet-Printed Field-Effect Transistor for Label-Free Biosensing August 11th, 2014

“Active” surfaces control what’s on them: Researchers develop treated surfaces that can actively control how fluids or particles move August 6th, 2014

New Material Allows for Ultra-Thin Solar Cells August 4th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE