Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Self-assembling highly conductive plastic nanofibers

Artist’s impression based on a real atomic force microscopy (AFM) image showing conductive supramolecular fibers trapped between two gold electrodes spaced 100 nm apart. Each plastic fiber is composed of several short fibers and is capable of transporting electrical charges with the same efficiency as a metal. © Graphics: M. Maaloum, ICS (CNRS).
Artist’s impression based on a real atomic force microscopy (AFM) image showing conductive supramolecular fibers trapped between two gold electrodes spaced 100 nm apart. Each plastic fiber is composed of several short fibers and is capable of transporting electrical charges with the same efficiency as a metal. © Graphics: M. Maaloum, ICS (CNRS).

Abstract:
Researchers from CNRS and the Université de Strasbourg, headed by Nicolas Giuseppone (1) and Bernard Doudin (2), have succeeded in making highly conductive plastic fibers that are only several nanometers thick. These nanowires, for which CNRS has filed a patent, "self-assemble" when triggered by a flash of light! Inexpensive and easy to handle, unlike carbon nanotubes (3), they combine the advantages of the two materials currently used to conduct electric current: metals and plastic organic polymers (4). In fact, their remarkable electrical properties are similar to those of metals. In addition, they are light and flexible like plastics, which opens up the possibility of meeting one of the most important challenges of 21st century electronics: miniaturizing components down to the nanometric scale. This work will be published on 22 April 2012 on Nature Chemistry's website. The next step is to demonstrate that these fibers can be industrially integrated within electronic devices such as flexible screens, solar cells, etc.

Self-assembling highly conductive plastic nanofibers

Paris, France | Posted on April 23rd, 2012

In previous work published in 2010 (5), Giuseppone and his colleagues succeeded for the first time in obtaining nanowires. To achieve this feat, they chemically modified "triarylamines", synthetic molecules that have been used for decades by industry in Xerox® photocopying processes. Much to their surprise, they observed that in light and in solution, their new molecules stacked up spontaneously in a regular manner to form miniature fibers. These wires, a few hundred nanometers long (1 nm = 10-9 m, i.e. a billionth of a meter), are made up of what is known as the "supramolecular" assembly of several thousand molecules.

In collaboration with Doudin's team, the researchers then studied the electrical properties of these nanofibers in detail. This time, they placed their molecules in contact with an electronic microcircuit comprising gold electrodes spaced 100 nm apart. They then applied an electric field between these electrodes.

Their first important finding was that, when triggered by a flash of light, the fibers self-assemble solely between the electrodes. The second surprising result was that these structures, which are as light and flexible as plastics, turn out to be capable of transporting extraordinary current densities, above 2.10^6 Amperes per square centimeter (A.cm-2), approaching those of copper wire. In addition, they have very low interface resistance with metals (6) : 10,000 times below that of the best organic polymers.

The researchers now hope to demonstrate that their fibers can be used industrially in miniaturized electronic devices such as flexible screens, solar cells, transistors, printed nanocircuits, etc.

Notes
(1) Institut Charles Sadron (CNRS).
(2) Institut de Physique et Chimie des Matériaux de Strasbourg (CNRS / Université de Strasbourg).
(3) Hollow carbon tubes with a diameter of around one nanometer (1 nm = 10-9 m), displaying outstanding electrical, mechanical and thermal properties, thus opening the way to numerous applications in the microelectronics sector.
(4) Very large organic molecules, in other words of living origin or derived from oil, mainly containing carbon and hydrogen.
(5) The Hierarchical Self-Assembly of Charge Nanocarriers: A Highly Cooperative Process Promoted by Visible Light; Giuseppone, N. et co. Angew. Chem. Int. Ed. 2010, 49, 6974-78
(6) "Force" with which the conductor opposes the flow of current.

Full bibliographic informationBibliography
Light-triggered Self-construction of Supramolecular Organic Nanowires as Metallic Interconnects. Vina Faramarzi, Frédéric Niess, Emilie Moulin, Mounir Maaloum, Jean-François Dayen, Jean-Baptiste Beaufrand, Silvia Zanettini, Bernard Doudin, and Nicolas Giuseppone. Nature Chemistry, On line on 22 April 2012 (DOI: 10.1038/NCHEM.1332)

####

For more information, please click here

Contacts:
Researchers
Nicolas Giuseppone
T +33 (0)3 88 41 41 66


Bernard Doudin
T +33 (0)3 88 10 72 39


Technology transfer specialist
Julien Brohan


CNRS press officer
Priscilla Dacher
T +33 (0)1 44 96 46 06 l


Julien Guillaume
+ 33 1 44 96 51 51

Copyright © AlphaGalileo

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

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

New exotic phenomena seen in photonic crystals: Researchers observe, for the first time, topological effects unique to an “open” system January 12th, 2018

Nanotube fibers in a jiffy: Rice University lab makes short nanotube samples by hand to dramatically cut production time January 11th, 2018

Display technology/LEDs/SS Lighting/OLEDs

Chinese market opens up for Carbodeon nanodiamonds: Carbodeon granted Chinese Patent for Nanodiamond-containing Thermoplastic Thermal Compounds December 4th, 2017

Graphene oxide making any material suitable to create biosensors: Scientists from Tomsk Polytechnic University have developed a new tool for biomedical research focused on single-cell investigation November 27th, 2017

The next generation of power electronics? Gallium nitride doped with beryllium: How to cut down energy loss in power electronics? The right kind of doping November 9th, 2017

Flexible Electronics

Printing Flexible Graphene Supercapacitors December 1st, 2017

Fine felted nanotubes : Research team of Kiel University develops new composite material made of carbon nanotubes November 22nd, 2017

Self Assembly

Particle size matters for porous building blocks: Rice University scientists find porous nanoparticles get tougher under pressure, but not when assembled December 19th, 2017

Physicists gain new insights into nanosystems with spherical confinement: Enormous potential for the targeted delivery of pharmaceutical agents and the creation of tailored nanoparticles July 27th, 2017

Oddball enzyme provides easy path to synthetic biomaterials May 17th, 2017

Nanotubes that build themselves April 14th, 2017

Nanoelectronics

Viewing atomic structures of dopant atoms in 3-D relating to electrical activity in a semiconductor December 28th, 2017

Electronically-smooth '3-D graphene': A bright future for trisodium bismuthide: Electronically-smooth nature of trisodium bismuthide makes it a viable alternative to graphene/h-BN December 22nd, 2017

Columbia engineers create artificial graphene in a nanofabricated semiconductor structure: Researchers are the first to observe the electronic structure of graphene in an engineered semiconductor; finding could lead to progress in advanced optoelectronics and data processing December 13th, 2017

GLOBALFOUNDRIES, Fudan Team to Deliver Next Generation Dual Interface Smart Card November 14th, 2017

Discoveries

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

New exotic phenomena seen in photonic crystals: Researchers observe, for the first time, topological effects unique to an “open” system January 12th, 2018

'Decorated' stem cells could offer targeted heart repair January 11th, 2018

Announcements

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

New exotic phenomena seen in photonic crystals: Researchers observe, for the first time, topological effects unique to an “open” system January 12th, 2018

'Decorated' stem cells could offer targeted heart repair January 11th, 2018

Energy

Rice U.'s one-step catalyst turns nitrates into water and air: NSF-funded NEWT Center aims for catalytic converter for nitrate-polluted water January 5th, 2018

Tweaking quantum dots powers-up double-pane solar windows: Engineered quantum dots could bring down the cost of solar electricity January 2nd, 2018

Paving the way for a non-electric battery to store solar energy: UMass Amherst scientists say a polymer chain organized like a string of Christmas lights assists energy storage December 22nd, 2017

Inorganic-organic halide perovskites for new photovoltaic technology November 6th, 2017

Solar/Photovoltaic

Tweaking quantum dots powers-up double-pane solar windows: Engineered quantum dots could bring down the cost of solar electricity January 2nd, 2018

Record high photoconductivity for new metal-organic framework material December 15th, 2017

Inorganic-organic halide perovskites for new photovoltaic technology November 6th, 2017

New nanomaterial can extract hydrogen fuel from seawater: Hybrid material converts more sunlight and can weather seawater's harsh conditions October 4th, 2017

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