Featured Research

from universities, journals, and other organizations

Full control of plastic transistors

Date:
May 16, 2012
Source:
Linköping Universitet
Summary:
Transistors made of plastic can be controlled with great precision, according to a new article.

Transistors made of plastic can be controlled with great precision, according to an article in  PNAS by Loïg Kergoat, a researcher at Linköping University in Sweden.

The Organic Electronics Research Group at Linköping University (LiU) in Sweden, led by Professor Magnus Berggren, attracted great attention a year ago when Lars Herlogsson showed in his doctoral thesis that it was possible to construct fully functional field-effect transistors out of plastic.

Kergoat, a post-doc in the same research group, now shows that transistors made of plastic can be controlled with great precision.

If a transistor is to be usable in a logic circuit, the threshold voltage, where the transistor switches from off to on, or zero to one, must be well defined. Kergoat has now shown that by changing the material on the gate electrode, the electrode in a transistor that governs the current through both the other electrodes, the threshold voltage can also gradually be shifted.

"Transistors built from organic electronics need to be able to be controlled with weak voltages, preferably as close to zero as possible," Kergoat says.

By changing the electrode material, for example from gold to calcium, the threshold voltage is reduced by as much as 0.9V.

"This means that we can control exactly one of the most important properties of our transistors, which is of great significance now that we're building circuits of various types," Berggren says.

Research was conducted in collaboration between the Organic Electronics Group in the Linköping University Department of Science and Technology and a research group at the Université Paris Diderot, Paris 7, where Berggren was a guest professor between 2009 and 2011.


Story Source:

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


Journal Reference:

  1. L. Kergoat, L. Herlogsson, B. Piro, M. C. Pham, G. Horowitz, X. Crispin, M. Berggren. Tuning the threshold voltage in electrolyte-gated organic field-effect transistors. Proceedings of the National Academy of Sciences, 2012; DOI: 10.1073/pnas.1120311109

Cite This Page:

Linköping Universitet. "Full control of plastic transistors." ScienceDaily. ScienceDaily, 16 May 2012. <www.sciencedaily.com/releases/2012/05/120516093018.htm>.
Linköping Universitet. (2012, May 16). Full control of plastic transistors. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2012/05/120516093018.htm
Linköping Universitet. "Full control of plastic transistors." ScienceDaily. www.sciencedaily.com/releases/2012/05/120516093018.htm (accessed October 20, 2014).

Share This



More Matter & Energy News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Gulfstream G500, G600 Unveiling

Gulfstream G500, G600 Unveiling

Flying (Oct. 20, 2014) — Watch Gulfstream's public launch of the G500 and G600 at their headquarters in Savannah, Ga., along with a surprise unveiling of the G500, which taxied up under its own power. Video provided by Flying
Powered by NewsLook.com
Japanese Scientists Unveil Floating 3D Projection

Japanese Scientists Unveil Floating 3D Projection

Reuters - Innovations Video Online (Oct. 20, 2014) — Scientists in Tokyo have demonstrated what they say is the world's first 3D projection that floats in mid air. A laser that fires a pulse up to a thousand times a second superheats molecules in the air, creating a spark which can be guided to certain points in the air to shape what the human eye perceives as an image. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-Fuel Impala

Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-Fuel Impala

3BL Media (Oct. 20, 2014) — Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-fuel Impala Video provided by 3BL
Powered by NewsLook.com
What We Know About Microsoft's Rumored Smartwatch

What We Know About Microsoft's Rumored Smartwatch

Newsy (Oct. 20, 2014) — Microsoft will reportedly release a smartwatch that works across different mobile platforms, has a two-day battery life and tracks heart rate. 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