Sign In

Communications of the ACM

ACM TechNews

Is Water the Key to Cheaper Nanoelectronics?

View as: Print Mobile App Share:
glass of water


Kavli Institute of Nanoscience researchers have developed a way to use water to quickly transfer layers from one surface to another by exploiting the fact that different materials have different hydrophilicity, a discovery that could lead to lower manufacturing costs for nanoelectronics.

The researchers, led by Kavli's Gregory Schneider and Cees Dekker, developed a solid hydrophobic layer on top of a silicon wafer by dipping it in a solution containing a hydrophobic polymer. They then submerged the wafer in water, which wedged the layers off the silicon base. Intermolecular forces between the graphene and silicon provide a stable attachment and eliminate the need for glue, Dekker says.

Repeating the technique several times would allow graphene layers to be built up into a complex nanoelectronic structure. "A [three-dimensional] microelectrode can be designed, layer by layer, using our 'wedging' transfer technique," Schneider says.

From New Scientist
View Full Article – May Require Free Registration


Abstracts Copyright © 2010 Information Inc., Bethesda, Maryland, USA


No entries found