Pages

My professional profile on Linkedin

View James Alexander's profile on LinkedIn

Where my visitors are

A380's TRENT XWB

Materials Science and Engineering, Durable Development, Recycling..

Custom Search

Blog List-Free Science and Engineering Information Resources cf also Side and Bottom menu bars

Scientific Reports - nature.com science feeds

Physical sciences : nature.com subject feeds

Materials science : nature.com subject feeds

Monday, 12 March 2012

Graphene modified to become non-conducting - tipped to be "the new silicon"

Materials Science Pick of the Day from my RSS feed.

Graphene and a new dimension
A growing number of scientists recognises how graphene, an allotrope of carbon, is the next silicon. But they also know graphene is too conductive to be used in computer chips. Now a research team from the University of Manchester in the United Kingdom may have found a way to address this problem. Presented in the journal Science, the study demonstrates how a transistor could indeed be the missing link for graphene to become the next silicon. Their discovery opens a third dimension in graphene research.


Ref:
1. Non conducting Graphene modification


Note

Graphene is a wonder material with many superlatives to its name. It is the thinnest known material in the universe and the strongest ever measured. Its charge carriers exhibit giant intrinsic mobility, have zero effective mass, and can travel for micrometers without scattering at room temperature. Graphene can sustain current densities six orders of magnitude higher than that of copper, shows record thermal conductivity and stiffness, is impermeable to gases, and reconciles such conflicting qualities as brittleness and ductility. Electron transport in graphene is described by a Dirac-like equation, which allows the investigation of relativistic quantum phenomena in a benchtop experiment. This review analyzes recent trends in graphene research and applications, and attempts to identify future directions in which the field is likely to develop. 


Graphene: Status and Prospects by A. K. Geim in Science.

No comments:

High Purity Cr sources for Superalloys

Energy for th Future:Phil.Trans.A-Vol. 365, N° 1853 / April 15, 2007, curtesy The Royal Soc. London

Engineered foams and porous materials: Phil Trans A. Vol 364, N° 1838 / 06 curtesy_The R Soc. Lond