Purdue News Photos
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This diagram shows the "porous anodic alumina template" created by Purdue engineers to grow carbon nanotubes vertically out of tiny cavities on top of a silicon wafer. The technique might form a foundation for creating future "vertically oriented" nanoelectronic devices that can pack more devices and circuits into a computer chip while keeping the same footprint size as conventional chips.
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This picture, taken with a transmission electron microscope, shows carbon nanotubes that have been grown out of tiny cavities in a "porous anodic alumina template" created by Purdue engineers. A layer of iron in the template acts as a catalyst to grow the nanotubes from methane gas flowed into the template. The technique might help develop a method for creating future "vertically oriented" nanoelectronic devices that pack more devices and circuits into a computer chip while keeping the same-size footprint as a conventional chip.
(Photos by: Birck Nanotechnology Center, Purdue University)
The story accompanying these photographs can be seen by clicking this link to Fisher.vertical
For more information about photographs, send e-mail to:
David Umberger
Associate Director
Purdue News Service
umberger@purdue.edu
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