Navigation Links
Graphene-based gadgets may be just years away
Date:4/30/2008

Researchers at The University of Manchester have produced tiny liquid crystal devices with electrodes made from graphene an exciting development that could lead to computer and TV displays based on this technology.

Writing in the American Chemical Societys journal Nano Letters, Dr Kostya Novoselov and colleagues from The School of Physics and Astronomy and The School of Computer Science, report on the use of graphene as a transparent conductive coating for electro-optical devices and show that its high transparency and low resistivity make it ideal for electrodes in liquid crystal devices.

Graphene was discovered at The University of Manchester back in 2004, by Professor Andre Geim FRS and Royal Society Research Fellow Dr Kostya Novoselov. This incredible one-atom-thick gauze of carbon atoms, which resembles chicken wire, has quickly become one of the hottest topics in physics and materials science.

Graphene is only one atom thick, optically transparent, chemically inert, and an excellent conductor, says Dr Novoselov, from the Manchester research team.

These properties seem to make this material an excellent candidate for applications in various electro-optical devices that require conducting but transparent thin films. We believe graphene should improve the durability and simplify the technology of potential electronic devices that interact with light.

Prof Geim said: Transparent conducting films are an essential part of many gadgets including common liquid crystal displays (LCDs) for computers, TVs and mobile phones.

The underlying technology uses thin metal-oxide films based on indium. But indium is becoming an increasingly expensive commodity and, moreover, its supply is expected to be exhausted within just 10 years.

Forget about oil our civilisation will first run out of indium. Scientists have an urgent task on their hands to find new types of conductive transparent films.

The Manchester research team has now demonstrated highly transparent and highly conductive ultra-thin films that can be produced cheaply by dissolving chunks of graphite an abundant natural resource into graphene and then spraying the suspension onto a glass surface.

The resulting graphene-based films can be used in LCDs and, to prove the concept, the research team have demonstrated the first liquid crystal devices with graphene electrodes.

Dr Novoselov believes that there are only a few small, incremental steps remain for this technology to reach a mass production stage. Graphene-based LCD products could appear in shops as soon as in a few years, he adds.

A research team from the Max Planck Institute for Polymer Research in Germany recently reported in Nano Letters how they had used graphene-based films to create transparent electrodes for solar cells (1).

But the German team used a different technology for obtaining graphene films, which involved several extra steps.

The Manchester team says the films they have developed are much simpler to produce, and they can be used not only in LCDs but also in solar cells.


'/>"/>

Contact: Alex Waddington
01-612-758-387
University of Manchester
Source:Eurekalert

Related biology technology :

1. Aware Celebrates Fifteen Years of Innovation and Leadership in the Biometrics Industry
2. Social Network for Scientists Marks Ten Years Online
3. First New Class of Platinum-Based Chemotherapy Drug Candidates in 30 Years Demonstrate Ability to Kill Tumors Resistant to Currently Marketed Platinum Drugs
4. Dark energy -- 10 years on
5. Wyeth Consumer Healthcare Supports U.S. Food and Drug Administration Decision for Over-the-Counter Cough and Cold Medications in Children under Two Years of Age
6. Biotech Crops Experience Remarkable Dozen Years of Double-Digit Growth
7. Electrophysiology Procedures for Atrial Fibrillation Treatment to Grow Over 25% Annually Over the Next Five Years
8. Edwards Lifesciences Celebrates 50 Years of Life-Saving Innovations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/12/2017)... ... January 12, 2017 , ... ... Vertebral Technologies, Inc., announces the successful outcome of the first lumbar fusion ... VTI (Vertebral Technologies, Inc.) has partnered with Mexico-based medical product company BioMedical ...
(Date:1/12/2017)... AURORA, Colo (PRWEB) , ... January 12, 2017 ... ... and then to targeted treatments, 26-year-old Lisa Rosendahl’s doctors gave her only a ... eLife describes a new drug combination that has stabilized Rosendahl’s disease and increased ...
(Date:1/12/2017)... The report "Direct-Fed Microbials Market by Type (Lactic Acid Bacteria and Bacillus), Livestock (Pork/Swine, Poultry, ... to 2022", published by MarketsandMarkets, the global market is estimated to be valued ... by 2022, at a CAGR of 6.96% from 2016. ... ... ...
(Date:1/11/2017)... ... January 11, 2017 , ... ... clinics in Peru studying the pathogens that cause malaria and tuberculosis. Seeing firsthand ... path of discovery. , Now, as an assistant professor of biology and biotechnology ...
Breaking Biology Technology:
(Date:12/15/2016)... , Dec. 15, 2016   WaferGen Bio-systems, ... held genomics technology company, announced today that on December ... Qualifications Department of The Nasdaq Stock Market LLC which ... bid price of WaferGen,s common stock had been at ... WaferGen has regained compliance with Listing Rule 5550(a)(2) of ...
(Date:12/15/2016)... Advancements in biometrics will radically ... wellbeing (HWW), and security of vehicles by ... vehicles begin to feature fingerprint recognition, iris ... monitoring, brain wave monitoring, stress detection, fatigue ... detection. These will be driven by built-in, ...
(Date:12/15/2016)... Dec. 14, 2016 "Increase in mobile transactions ... The mobile biometrics market is expected to grow from ... by 2022, at a CAGR of 29.3% between 2016 ... as the growing demand for smart devices, government initiatives, ... "Software component is expected to grow at a ...
Breaking Biology News(10 mins):