Open menu

Nanotechnology General News

The latest news from academia, regulators
research labs and other things of interest

Posted: May 23, 2011

Reusable template for the production of nanowires

(Nanowerk News) Scientists from Argonne's Center for Nanoscale Materials's Nanofabrication Group, working with users from the University of Wisconsin-Stevenson Point, discovered a fast, simple, scalable technique for solution-based, electrochemical synthesis of patterned metallic and semiconducting nanowires from a reusable, nonsacrificial, ultrananocrystalline diamond (UNCD) template ("Electroplate and Lift Lithography for Patterned Micro/Nanowires Using Ultrananocrystalline Diamond (UNCD) as a Reusable Template").
Scanning electron micrograph image showing platinum wires being lifted away from the surface of the UNCD electrode
Scanning electron micrograph image showing platinum wires being lifted away from the surface of the UNCD electrode. Inset: Higher magnification image showing a single ring of platinum removed from the UNCD surface.
The process involves fabrication of wafer-level electrochemical cells consisting of alternating insulating and conducting UNCD thin films. Unique electrochemical properties of electrically conducting nitrogen incorporated UNCD not only provide a robust electrode platform for electro-deposition of micro/nanowires of various materials, but also facilitate easy peeling-off of deposited micro/nanowires for repeat use.
This bench-top technique is easy and quickly produces patterned nanowires on a large scale with diameters that are not predefined by the template, and do not require vacuum or clean-room processing. This offers a path for studying nanoscale phenomena and allows for process-scale development of a new generation of nanowire-based devices.
Source: Argonne National Laboratory
If you liked this article, please give it a quick review on reddit or StumbleUpon. Thanks!
Check out these other trending stories on Nanowerk:

Subscribe to a free copy of one of our daily
Nanowerk Newsletter Email Digests
with a compilation of all of the day's news.