Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Chemical Wiring and Soldering toward All-Molecule Electronic Circuitry

03.06.2011
National Institute of Materials Science announced that a chemical wiring method has been developed for interconnection of each organic molecule by electrically conductive polymers.

National Institute of Materials Science (NIMS) announced on May 6, 2011 that a chemical wiring method is developed for interconnection of each organic molecule by electrically conductive polymers.

Details are published in Journal of the American Chemical Society, Article ASAP* by Researcher Yuji Okawa and his colleagues of NIMS International Center for Materials Nanoarchitectonics (MANA) with coauthors from organizations in Switzerland, Germany and United States.

Concerns of viable physical limitation of silicon based electronics have made single-molecule electronics to be a promising candidate for the future information systems. A challenge for its realization is connecting functional molecules to each other using conductive nanowires.

Researchers devised a method to create conductive nanowires at designated positions, and to ensure chemical bonding between the nanowires and functional molecules as follows. Functional molecules (phthalocyanine) are placed on a self-assembled monolayer of diacetylene compound. A probe tip of scanning tunneling microscope (STM) is positioned on the molecular row of the compound and stimulate the compound to form a conductive polydiacetylene nanowire by chain polymerization. Because of the high reactivity of the front edge of chain polymerization, the created polymer nanowire forms chemical bonding with an encountered molecular element, which will be named "chemical soldering".

First-principles theoretical calculations are used to investigate the structures and electronic properties of the connection. STM images demonstrated two conductive polymer nanowires connected to a single phthalocyanine molecule. A resonant tunneling diode is formed by this method as an example of single-molecule electronic devices.

Journal information

*Yuji Okawa, Swapan K. Mandal, Chunping Hu, Yoshitaka Tateyama, Stefan Goedecker, Shigeru Tsukamoto, Tsuyoshi Hasegawa, James K. Gimzewski, and Masakazu Aono, "Chemical Wiring and Soldering toward All-Molecule Electronic Circuitry", Journal of the American Chemical Society, Articles ASAP. Publication Date (Web): May 6, 2011 (Article) DOI: 10.1021/ja111673x

Mikiko Tanifuji | Research asia research news
Further information:
http://www.nims.go.jp/eng/
http://www.researchsea.com

More articles from Materials Sciences:

nachricht Let the good tubes roll
19.01.2018 | DOE/Pacific Northwest National Laboratory

nachricht Method uses DNA, nanoparticles and lithography to make optically active structures
19.01.2018 | Northwestern University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Let the good tubes roll

19.01.2018 | Materials Sciences

How cancer metastasis happens: Researchers reveal a key mechanism

19.01.2018 | Health and Medicine

Meteoritic stardust unlocks timing of supernova dust formation

19.01.2018 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>