Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > First graphene touchscreen

The researchers built up a graphene layer on copper foil and then used rollers to transfer the graphene to a polymer support and then onto a final substrate.  Nature Nanotechnology
The researchers built up a graphene layer on copper foil and then used rollers to transfer the graphene to a polymer support and then onto a final substrate. Nature Nanotechnology

Abstract:
Researchers in Korea and Japan have fabricated films of graphene - planar sheets of carbon one atom thick - measuring tens of centimetres. The researchers engineered these large graphene films into transparent electrodes, which were incorporated into touchscreen panel devices.

By Simon Hadlington

First graphene touchscreen

UK | Posted on June 22nd, 2010

The new work represents another milestone in the astonishing technological advance of graphene from its initial isolation only a few years ago. Experts predict that graphene will be found in consumer products within a couple of years.

The team, led by Jong-Hyun Ahn and Byung Hee Hong of Sungkyunkwan University, Korea, grew a graphene layer on copper foil by chemical vapour deposition (CVD) using a previously demonstrated technique.

Using a roller, the graphene face can then be pressed against an adhesive polymer support and the copper etched away, leaving the graphene film attached to the polymer. The graphene can then be pressed against a final substrate - such as polyethylene terephthalate (PET) - again using rollers, and the polymer adhesive released by heating. Subsequent layers of graphene can then be added in a similar way.

The researchers used this technique to create a rectangular graphene film measuring 30 inches (76 cm) in the diagonal. The graphene was doped by treating with nitric acid and in this form the graphene sheet can act as a large, transparent electrode and was demonstrated to work in a touchscreen device.

Typically, transparent electrodes used in such applications are made from indium tin oxides (ITO). The researchers say that the graphene electrode has better transparency and is tougher. 'The price of indium has increased by a few times over the past decades and this will be more serious as markets for display and solar cells expand,' says Ahn.'In addition, oxide materials like ITO are usually fragile and weak.' Because of this, ITO-based touchscreens have a finite life span, whereas, says Ahn, a graphene-based screen should last essentially forever.

'In addition, the graphene production needs just a tiny amount of carbon sources without any rare materials, and the copper substrate is recyclable, so it is much more environmentally friendly than ITO production.'

Andre Geim of the University of Manchester in the UK, who is widely credited as being the founding father of modern graphene science having discovered isolated graphene around five years ago, says the new work demonstrates the astonishing rapidity with which graphene technology has advanced. 'This clearly shows that graphene is no longer wishful thinking as far as industrial applications go. People have gone from lab-scale to industrial-scale production unbelievably quickly. Within two years we will have consumer products.'

####

For more information, please click here

Copyright © Royal Society of Chemistry

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

Forces of nature: Interview with microscopy innovators Gerd Binnig and Christoph Gerber August 26th, 2016

A promising route to the scalable production of highly crystalline graphene films August 26th, 2016

Graphene under pressure August 26th, 2016

Stretchy supercapacitors power wearable electronics August 25th, 2016

AIM Photonics Announces Release of Process Design Kit (PDK) for Integrated Silicon Photonics Design August 25th, 2016

Videos/Movies

Graphene under pressure August 26th, 2016

50 years after the release of the film 'Fantastic Voyage,' science upstages fiction: Science upstages fiction with nanorobotic agents designed to travel in the human body to treat cancer August 25th, 2016

Argonne discovery yields self-healing diamond-like carbon August 7th, 2016

Display technology/LEDs/SS Lighting/OLEDs

McMaster researchers resolve a problem that has been holding back a technological revolution August 18th, 2016

Leading Advanced Materials Manufacturer Pixelligent Closes $10.4 Million in Funding: Capital Will Boost Capacity for North American Manufacturing, Drive Asian Expansion, and Continue Innovation in Solid State Lighting and OLED Display Applications August 16th, 2016

Towards a better screen; New molecules promise cheaper, more efficient OLED displays August 9th, 2016

Possible Futures

A promising route to the scalable production of highly crystalline graphene films August 26th, 2016

Graphene under pressure August 26th, 2016

Nanofiber scaffolds demonstrate new features in the behavior of stem and cancer cells August 25th, 2016

Nanofur for oil spill cleanup: Materials researchers learn from aquatic ferns: Hairy plant leaves are highly oil-absorbing / publication in bioinspiration & biomimetics / video on absorption capacity August 25th, 2016

Academic/Education

AIM Photonics Announces Release of Process Design Kit (PDK) for Integrated Silicon Photonics Design August 25th, 2016

Nanotech Security Featured by Simon Fraser University: Company's Anti-Counterfeiting Technology Developed With the Help of University's 4D LABS Materials Research Institute August 21st, 2016

W.M. Keck Foundation awards Cal State LA a $375,000 research and education grant August 4th, 2016

Thomas Swan and NGI announce unique partnership July 28th, 2016

Nanotubes/Buckyballs/Fullerenes

Tunneling nanotubes between neurons enable the spread of Parkinson's disease via lysosomes August 24th, 2016

McMaster researchers resolve a problem that has been holding back a technological revolution August 18th, 2016

'Second skin' protects soldiers from biological and chemical agents August 5th, 2016

Carbon nanotube 'stitches' make stronger, lighter composites: Method to reinforce these materials could help make airplane frames lighter, more damage-resistant August 4th, 2016

Announcements

Forces of nature: Interview with microscopy innovators Gerd Binnig and Christoph Gerber August 26th, 2016

A promising route to the scalable production of highly crystalline graphene films August 26th, 2016

Graphene under pressure August 26th, 2016

New electrical energy storage material shows its power: Nanomaterial combines attributes of both batteries and supercapacitors August 25th, 2016

Research partnerships

New electrical energy storage material shows its power: Nanomaterial combines attributes of both batteries and supercapacitors August 25th, 2016

New theory could lead to new generation of energy friendly optoelectronics: Researchers at Queen's University Belfast and ETH Zurich, Switzerland, have created a new theoretical framework which could help physicists and device engineers design better optoelectronics August 23rd, 2016

A new way to display the 3-D structure of molecules: Metal-organic frameworks provide a new platform for solving the structure of hard-to-study samples August 21st, 2016

Researchers watch catalysts at work August 19th, 2016

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







Car Brands
Buy website traffic