Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

10-minute plasma treatment improves organic memory performance

20.10.2010
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 | EurekAlert!
Further information:
http://www.aip.org

More articles from Physics and Astronomy:

nachricht Further Improvement of Qubit Lifetime for Quantum Computers
09.12.2016 | Forschungszentrum Jülich

nachricht Electron highway inside crystal
09.12.2016 | Julius-Maximilians-Universität Würzburg

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: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>