Home  |  Top News  |  Most Popular  |  Video  |  Multimedia  |  News Feeds  |  Feedback
  Medicine  |  Nature & Earth  |  Biology  |  Technology & Engineering  |  Space & Planetary  |  Psychology  |  Physics & Chemistry  |  Economics  |  Archaeology
Top > Chemistry > An Advance Toward Ultra-portable Electronic… >
An Advance Toward Ultra-portable Electronic Devices

Published: July 20, 2011.
By American Chemical Society
http://www.acs.org

Scientists are reporting a key advance toward the long-awaited era of "single-molecule electronics," when common electronic circuits in computers, smart phones, audio players, and other devices may shrink to the size of a grain of sand. The breakthrough is a method for creating and attaching the tiny wires that will connect molecular components, reports a new study in the Journal of the American Chemical Society.

Yuji Okawa and colleagues write that the "key to single-molecule electronics is connecting functional molecules to each other using conductive nanowires. This involves two issues: how to create conductive nanowires at designated positions, and how to ensure chemical bonding between the nanowires and functional molecules." That challenge has stymied many researchers, who have struggled to produce wires small enough to use in molecular circuits.

The scientists now demonstrate a method that uses the tip of a scanning tunneling microscope to jump-start the formation of a molecule chain. The chain or "wire" spontaneously chemically bonds with other molecular components in the circuit under construction, a process that Okawa and colleagues dub "chemical soldering." The wiring method can be used to connect molecular switches, memory bits, and transistors. The scientists say their technique "will enable us to develop cheaper, higher-performance, and more ecological alternatives to conventional silicon-based devices."


Show Reference »


Translate this page: Chinese French German Italian Japanese Korean Portuguese Russian Spanish


 
All comments are reviewed before being posted. We cannot accept messages that refer a product, or web site.If you are looking for a response to a question please use our another feedback page.
Related »

Molecules 
8/28/13 
Molecular Motors: Power Much Less Than Expected?
By Institute of Physical Chemistry of the Polish Academy of Sciences
An innovative measurement method was used at the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw for estimating power generated by motors of single molecule …
Quantum 
3/13/14 

A Brake for Spinning Molecules
By Max-Planck-Gesellschaft
Motor 
9/5/11 

World's Smallest Electric Motor Made from a Single Molecule
By Tufts University
Machinery 
9/13/10 

Would a Molecular Horse Trot, Pace Or Glide Across a Surface?
By University of California - Riverside
More » 
 
© Newsline Group  |  About  |  Privacy Policy  |  Feedback  |  Mobile  |  Japanese Edition
All contents are copyright of their owners except U.S. Government works. U.S. Government works are assumed to be in the public domain unless otherwise noted. Everything else copyright ScienceNewsline.