Featured Research

from universities, journals, and other organizations

First Transistor Using Nanotechnology Is 50 Times More Energy Efficient Than Current Models

Date:
April 26, 2008
Source:
Lund University
Summary:
Transistors are an indispensable building block in electric appliances, where they amplify weak electric currents. Now researchers have developed a new type of transistor that is 50 times more energy efficient than today's models. It is also the first to be developed using nanotechnology.

Transistors are an indispensable building block in electric appliances, where they amplify weak electric currents. Now researchers have developed a new type of transistor that is 50 times more energy efficient than today’s models. It is also the first to be developed using nanotechnology.

“This kind of transistor should be able to reduce energy consumption in mobile phones and computers, for example, so they wouldn’t have to be recharged so often. What’s more, it can pave the way for communicating in frequencies that are too high for today’s technology,” says Lars-Erik Wernersson, professor of solid state physics at the Faculty of Engineering, Lund University, in Sweden.

For some time researchers have been stymied by the fact that transistors can’t be reduced any further in size without overheating, since the electrons release so much energy.

“But our model is made up of indium arsenide, where the electrons move more easily compared with silicon, the conventional semiconductor material in transistors. Actually, it’s hard to produce transistors with indium arsenide, but if we apply nanotechnology, it’s rather simple,” explains Lars-Erik Wernersson.

The transistor is thus constructed using nanotechnology. According to Lars-Erik Wernersson, this means that the material is self-organized according to a bottom-up principle instead of being “carved out,” which is the conventional method.

Ultimately Lars-Erik Wernersson and his colleagues also hope to develop transistors that can communicate in entirely new frequency areas. Today’s electric appliances use 3–10 gigahertz. The hope is to reach 60 GHz, which is a considerably broader frequency range.

“With 60 GHz you can only communicate across short differences and not through walls, for instance. But this new frequency range can rationalize wireless communication in the home, for example when you download a film or communicate between TVs and projectors. We know for sure that such electric appliances will be integrated more and more in the future,” he adds.

There are other scientists in the world working with similar research­-at IBM in the U.S., for example­-but these Swedish researchers have made the most progress in this field.

Recently Lars-Erik Wernersson was informed he would receive SEK 24.5 million from the Swedish Foundation for Strategic Research to develop new wireless circuits using nanotechnology. The newly developed transistor technology will serve as the basis for the new circuits. The transistor has been partly developed in collaboration with the spin-off company QuNano.

The article “Vertical Enhancement-Mode InAs Nanowire Field-Effect Transistor With 50-nm Wrap Gate” is published in IEEE Electron Device Letters, volume 29, Issue 3, 2008, pp 206 – 208.


Story Source:

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


Cite This Page:

Lund University. "First Transistor Using Nanotechnology Is 50 Times More Energy Efficient Than Current Models." ScienceDaily. ScienceDaily, 26 April 2008. <www.sciencedaily.com/releases/2008/04/080424212327.htm>.
Lund University. (2008, April 26). First Transistor Using Nanotechnology Is 50 Times More Energy Efficient Than Current Models. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2008/04/080424212327.htm
Lund University. "First Transistor Using Nanotechnology Is 50 Times More Energy Efficient Than Current Models." ScienceDaily. www.sciencedaily.com/releases/2008/04/080424212327.htm (accessed July 25, 2014).

Share This




More Matter & Energy News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) — Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) — TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com
Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) — Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) — When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
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:
from the past week

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