Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Ten-Minute Plasma Treatment Improves Organic Memory Performance

21.10.2010
In its current early stage of development, digital memory circuits that use organic elements instead of silicon or other inorganic materials have a seemingly endless list of variables and options to consider, test, and optimize.

While organic electronics are immediately attractive for their potential for extremely low cost and flexible substrates, many design aspects that are now taken for granted in the mature silicon-circuit world must be examined anew from the ground up.

A group led by Takhee Lee from Korea's Gwangju Institute of Science and Technology has demonstrated an optimal combination of materials and processing for a resistive memory circuit design. With a specific composite polymer located between two aluminum contacts as their on-off memory element, the scientists showed that exposing the contacts to an oxygen plasma for a mere 10 minutes prior to constructing the memory cell improved the ratio of on-to-off signal more than 10-fold, to more than 10,000. A larger ratio enables higher circuit performance.

"This simple plasma treatment is very cost-effective compared with alternatives, and improved the operation enough to enable high-performance memory devices, " said Byungjin Cho, lead author of the technical report that appeared in August 16 edition of Applied Physics Letters, which is published by the American Institute of Physics. In addition to the on/off ratio, Cho added that other qualities such as switching speed and endurance, data retention and environmental durability must also be investigated and improved before organic memory chips would become practical. Different organic materials may also require their own solutions as well, he added.

The article, "Electrical characterization of organic resistive memory with interfacial oxide layers formed by O2 plasma treatment" by Byungjin Cho, Sunghoon Song, Yongsung Ji and Takhee Lee is published in the journal Applied Physics Letters. See: http://link.aip.org/link/applab/v97/i6/p063305/s1

Journalists may request a free PDF of this article by contacting jbardi@aip.org

Funding: By the National Research Laboratory program; National Core Research Center grant; World Class University program of the Korean Ministry of Education, Science and Technology; the Program for Integrated Molecular Systems/GIST; and the IT R&D program of MKE/KEIT.

ABOUT APPLIED PHYSICS LETTERS
Applied Physics Letters, published by the American Institute of Physics, features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, Applied Physics Letters offers prompt publication of new experimental and theoretical papers bearing on applications of physics phenomena to all branches of science, engineering, and modern technology. Content is published online daily, collected into weekly online and printed issues (52 issues per year). See: http://apl.aip.org/
ABOUT AIP
The American Institute of Physics is a federation of 10 physical science societies representing more than 135,000 scientists, engineers, and educators and is one of the world's largest publishers of scientific information in the physical sciences. Offering partnership solutions for scientific societies and for similar organizations in science and engineering, AIP is a leader in the field of electronic publishing of scholarly journals. AIP publishes 12 journals (some of which are the most highly cited in their respective fields), two magazines, including its flagship publication Physics Today; and the AIP Conference Proceedings series. Its online publishing platform Scitation hosts nearly two million articles from more than 185 scholarly journals and other publications of 28 learned society publishers.

Jason Socrates Bardi | Newswise Science News
Further information:
http://www.aip.org

More articles from Physics and Astronomy:

nachricht From rocks in Colorado, evidence of a 'chaotic solar system'
23.02.2017 | University of Wisconsin-Madison

nachricht Prediction: More gas-giants will be found orbiting Sun-like stars
22.02.2017 | Carnegie Institution for Science

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

From rocks in Colorado, evidence of a 'chaotic solar system'

23.02.2017 | Physics and Astronomy

'Quartz' crystals at the Earth's core power its magnetic field

23.02.2017 | Earth Sciences

Antimicrobial substances identified in Komodo dragon blood

23.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>