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 July 28, 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 July 28, 2014).

Share This




More Matter & Energy News

Monday, July 28, 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