Simulations may explain nanoparticles 'pinned' to graphene

User rating: 4.5 / 5 after 24 vote(s)

Graphene has proven a difficult material for researchers to tame. Peter Feibelman s computational simulation suggests an explanation for why iridium atoms (colored green) nest regularly atop a base of graphene (dark-colored atoms) grown over an iridi ...
Graphene has proven a difficult material for researchers to tame. Peter Feibelman 's computational simulation suggests an explanation for why iridium atoms (colored green) nest regularly atop a base of graphene (dark-colored atoms) grown over an iridium substrate. Peter’s image of the orderly nanoscopic metallic arrangement may provide insights to other scientists. His paper on the work was published last Thursday in Physical Review B online. (Photo by Randy Montoya)

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.


Full story »
All News summaries from Nanotechnology news
All News summaries for April 24, 2008

Researchers synthesize molecule with self-control

May 12, 2008 | User rating: not rated yet
Plants have an ambivalent relationship with light. They need it to live, but too much light leads to the increased production of high-energy chemical intermediates that can injure or kill the plant.

Federal government taps NC State experts to explain nanotech risks

May 12, 2008 | User rating: not rated yet
The arm of the federal government responsible for coordinating nanotechnology research and regulations across the country has called on experts from North Carolina State University to craft a white paper that will lay out ...

Scientists demonstrate method for integrating nanowire devices directly onto silicon

May 08, 2008 | User rating: not rated yet
Applied scientists at Harvard University in collaboration with researchers from the German universities of Jena, Gottingen, and Bremen, have developed a new technique for fabricating nanowire photonic and ...

Researchers identify pressure effects on nanomaterials

May 08, 2008 | User rating: not rated yet
Transistors, lasers and solar-energy conversion devices may be easier to manipulate because of recent research by Lawrence Livermore National Laboratory scientists. The researchers defined the role high pressure ...

Chemists measure chilli sauce hotness with nanotubes

May 07, 2008 | User rating: not rated yet
Oxford chemists have found a way of using carbon nanotubes to judge the heat of chilli sauces. The technology might soon be available commercially as a cheap, disposable sensor for use in the food industry.
Goto Archive PhysOrg Forum Goto Archive Video Goto Archive Editorials Goto Archive Free Magazines Goto Archive Newsletter

News Archive