Simulations May Explain Nanoparticles 'Pinned' To Graphene

Thursday, May 1, 2008 - 07:28 in Physics & Chemistry

It was hard to understand how a graphene sheet -- a featureless, flat sheet of carbon atoms -- lying on an equally featureless iridium surface, somehow converted itself into a kind of muffin tin that formed "muffins" made from newly arrived iridium atoms. The muffins were equally spaced and of equal size. Graphene flakes are notoriously difficult to work with. Still, they are stronger than diamond, better heat-shedders and conductors than silicon, and thought to have great potential in the worlds of microelectronics and sensors. If only they could be tamed.

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