Navigation Links
Graphene-based gadgets may be just years away

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
University of Manchester

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:
(Date:11/30/2015)... BETHESDA, Md. , Nov. 30, 2015  Northwest ... biotechnology company developing DCVax® personalized immune therapies for solid ... to adding an additional independent director, and the Company ... investigation of allegations in a recent anonymous internet report ... on both initiatives. Linda Powers stated, ...
(Date:11/27/2015)... , ... November 27, 2015 , ... ... that includes over 2,000 technical presentations offered in symposia, oral sessions, workshops, ... applied spectroscopy, covers a wide range of applications such as, but not limited ...
(Date:11/25/2015)... , Nov. 25, 2015  PharmAthene, Inc. (NYSE ... has adopted a stockholder rights plan (Rights Plan) in ... operating loss carryforwards (NOLs) under Section 382 of the ... --> PharmAthene,s use of its NOLs could ... change" as defined in Section 382 of the Code. ...
(Date:11/25/2015)... 25, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ:  AEZS; ... and prospects remain fundamentally strong and highlights the ... recently received DSMB recommendation to continue the ZoptEC ... of the final interim efficacy and safety data ... in men with heavily pretreated castration- and Taxane-resistant ...
Breaking Biology Technology:
(Date:11/18/2015)... New York , November 18, 2015 ... Market Research has published a new market report titled ... Growth, Trends, and Forecast, 2015 - 2021. According to the ... in 2014 and is anticipated to reach US$29.1 bn ... to 2021. North America ...
(Date:11/17/2015)... LIVERMORE, Calif. , Nov. 17, 2015  Vigilant ... has joined its Board of Directors. ... Vigilant,s Board after recently retiring from the partnership at ... owning 107 companies with over $140 Billion in revenue.  ... performance improvement across all the TPG companies, from 1997 ...
(Date:11/12/2015)... , Nov. 12, 2015  A golden retriever ... Duchenne muscular dystrophy (DMD) has provided a new lead ... Children,s Hospital, the Broad Institute of MIT and Harvard ... Brazil . Cell, pinpoints ... dogs "escape" the disease,s effects. The Boston Children,s lab ...
Breaking Biology News(10 mins):