A micrograph image of gold nanoparticles form on germanium, an advanced semiconductor material. These tiny particles could create better connections between microchips and the much larger wires that lead to other computer components. (Graphic/Lon Porter)
Nanoparticles form gradually after a semiconductor is dipped into a solution of metal salt. The cycle progresses from a surface of bare germanium (at the 12 oclock position) progressing clockwise to the same surface 500 minutes after immersion. The process occurs naturally, without the expensive equipment that is otherwise necessary to produce high-purity metals. (Graphic/Lon Porter)
Nanotechnology could make life easier for computer manufacturers and tougher for terrorists, reports a Purdue University research team.
A group led by Jillian Buriak has found a rapid and cost-effective method of forming tiny particles of high-purity metals on the surface of advanced semiconductor materials such as gallium arsenide. While the economic benefits alone of such a discovery would be good news to chip manufacturers, who face the problem of connecting increasingly tiny computer chips with macro-sized components, the group has taken their research a step further.
The scientists also have learned how to use these nanoparticles as a bridge to connect the chips with organic molecules. Biosensors based on this development could lead to advances in the war on terrorism.
Chad Boutin | Purdue News
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