Featured Research

from universities, journals, and other organizations

Yale Research On Molecular Switches May Lead To Smaller, Cheaper Computers

Date:
November 19, 1999
Source:
Yale University
Summary:
Yale and Rice University scientists have demonstrated molecular devices that act as reversible electronic switches, making it possible to build smaller computers that are less expensive.

Yale and Rice University scientists have demonstrated molecular devices that act as reversible electronic switches, making it possible to build smaller computers that are less expensive.

The vast improvements and reduced cost seen in computers and electronics over the last three decades will eventually stop because circuits can¹t be made smaller. Scientists have been trying to devise ways to address this problem for years. For the first time, the Yale research team has identified a reversible electronic switch that is the size of a single molecule.

"The ultimate for shrinking the size of a switch is the molecular level, which this study demonstrates," said Mark Reed, Harold Hodgkinson Professor of Engineering and Applied Science and chair of electrical engineering at Yale. "We also did it using a fabrication method which has the potential to radically reduce the cost of future microcircuits."

Published in the November 19 issue of Science, the study looks at large reversible switching behavior in nanoscale electronic devices that use molecules as the active component. The devices show a thousand-fold on/off ratio. These are comparable to or exceed more conventional types of electronic devices.

In addition to shrinking the size of the switch to atomic dimensions, the researchers also used a fabrication method called "self assembly," where the device actually self-forms, in comparison to conventional methods of transistor fabrication using lithography.

"The combination of the small size and the use of self-assembly has the potential to cause a discontinuity in the economics of microcircuitry," said Reed. "Although there are a host of engineering challenges to bring this to a manufacturable technology, this study demonstrates the principle and the fundamental limits of what can be done."

The research team consisted of Reed and graduate student Jia Chen in Yale¹s electrical engineering department; and Professor James Tour and graduate student Adam Rawlett of the Department of Chemistry and Center for Nanoscale Science and Technology at Rice University.


Story Source:

The above story is based on materials provided by Yale University. Note: Materials may be edited for content and length.


Cite This Page:

Yale University. "Yale Research On Molecular Switches May Lead To Smaller, Cheaper Computers." ScienceDaily. ScienceDaily, 19 November 1999. <www.sciencedaily.com/releases/1999/11/991119075852.htm>.
Yale University. (1999, November 19). Yale Research On Molecular Switches May Lead To Smaller, Cheaper Computers. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/1999/11/991119075852.htm
Yale University. "Yale Research On Molecular Switches May Lead To Smaller, Cheaper Computers." ScienceDaily. www.sciencedaily.com/releases/1999/11/991119075852.htm (accessed October 23, 2014).

Share This



More Matter & Energy News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) — Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) — Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) — As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com
What Is Magic Leap, And Why Is It Worth $500M?

What Is Magic Leap, And Why Is It Worth $500M?

Newsy (Oct. 22, 2014) — Magic Leap isn't publicizing much more than a description of its product, but it’s been enough for Google and others to invest more than $500M. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins