Log In   |   Sign up

New User Registration

Article / Abstract Submission
Register here
Register
Press Release Submission
Register here
Register
coolingZONE Supplier
Register here
Register

Existing User


            Forgot your password
John O | April 2019

Scientists create an organic transistor that works with both low and high currents


By Josh Perry, Editor
jperry@coolingzone.com

 

Physicists at the Ludwig Maximilian University (LMU) of Munich, Germany developed a fabrication technique for tiny organic transistors with a structure that allows them to work with low or high currents, according to a report from the university.

 


LMU scientists developed an organic transistor from low and high currents.
(Christoph Hohmann, Nanosystems Initiative Munich)

 

“By carefully tailoring a small set of parameters during the production process,” the article explained, “they have been able to design nanoscale devices for high or low current densities. The primary innovation lies in the use of an atypical geometry, which also facilitates assembly of the nanoscopic transistors.”

 

Researchers believe that these new transistors could be used in OLED and sensors where low voltages are required. They are particularly interested in using the transistors in memristors that model the behavior of neurons when processing electrical signals. A patent application was also filed for the device so it can be developed for industrial applications.

 

The research was recently published in Nature Nanotechnology. The abstract stated:

 

“Until now, organic semiconductors have failed to achieve high performance in highly integrated, sub-100 nm transistors. Consequently, single-crystalline materials such as single-walled carbon nanotubes, MoS2 or inorganic semiconductors are the materials of choice at the nanoscale.

 

“Here we show, using a vertical field-effect transistor design with a channel length of only 40 nm and a footprint of 2 × 80 × 80 nm2, that high electrical performance with organic polymers can be realized when using electrolyte gating. Our organic transistors combine high on-state current densities of above 3 MA cm−2, on/off current modulation ratios of up to 108 and large transconductances of up to 5,000 S m−1.

 

“Given the high on-state currents at such large on/off ratios, our novel structures also show promise for use in artificial neural networks, where they could operate as memristive devices with sub-100 fJ energy usage.”

Choose category and click GO to search for thermal solutions

 
 

Subscribe to Qpedia

a subscription to qpedia monthly thermal magazine from the media partner advanced thermal solutions, inc. (ats)  will give you the most comprehensive and up-to-date source of information about the thermal management of electronics

subscribe

Submit Article

if you have a technical article, and would like it to be published on coolingzone
please send your article in word format to articles@coolingzone.com or upload it here

Subscribe to coolingZONE

Submit Press Release

if you have a press release and would like it to be published on coolingzone please upload your pr  here

Member Login

Supplier's Directory

Search coolingZONE's Supplier Directory
GO
become a coolingzone supplier

list your company in the coolingzone supplier directory

suppliers log in

Media Partner, Qpedia

qpedia_158_120






Heat Transfer Calculators