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 Getting closer to porous, light-responsive materials
26.07.2017 | Kyoto University

nachricht Multitasking monolayers
25.07.2017 | Vanderbilt 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: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

 
Latest News

CCNY physicists master unexplored electron property

26.07.2017 | Physics and Astronomy

Molecular microscopy illuminates molecular motor motion

26.07.2017 | Life Sciences

Large-Mouthed Fish Was Top Predator After Mass Extinction

26.07.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>