Doping graphene

New graphene-based electronics could take a page out of the silicon electronics book

04-Jun-2010 - An organic molecule that has been found to be effective in making silicon-based electronics may be viable for building electronics on sheets of carbon only a single molecule thick. Researchers at the Max Plank Institute for Metals Research in Stuttgart report the advance in a paper appearing ...

A predilection for certain symmetries: Researchers discover why atoms in solids show a preference for certain structures

13-Apr-2010 - The process involved here sounds unwieldy, but is, in fact, quite simple: a material has a 6-fold rotation symmetry if the arrangement of its atoms remains unchanged when it is rotated by 60 degrees – one sixth of a circle. The atoms in metals often order themselves in this way. However, more ...

Getting to the roots of lethal hairs

Fine metal hairs, also called metal whiskers, on tin-plated copper cause short circuits in electronic components. An international team of researchers is finding out why they grow

05-Oct-2009 - A short circuit can be quite hairy: satellites have failed, a NASA computer centre was repeatedly paralysed and the US public heath authority recalled thousands of pacemakers - all because tin whiskers caused a short circuit in the electronic components of these devices. A team of scientists from ...

Living metals: Microscopic Structure of Crystalline Material Fluctuates

27-Apr-2005 - Using Synchrotron x-ray microbeams, a research team from the Max Planck Institute for Metals Research in Stuttgart and the ESRF has been able to observe for the first time that the microscopic structure of a crystalline material fluctuates in time. The results are just shed in Science Express ...