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Archive for the 'Molecular Electronics' Category

Atomically-precise positioning of a single atom transistor-VIDEO

Posted by Jim Lewis on February 19th, 2012

Researchers in Australia and the US have demonstrated a working transistor by placing of single atom of phosphorous with atomic precision between gates made of wires only a few phosphorous atoms wide. This demonstration points to possibly extending current computer technology to the atomic scale.

Graphene heterostructures may lead to graphene-based computer chips

Posted by Jim Lewis on February 12th, 2012

A field-effect tunneling transistor comprising a vertical heterostructure of atomically thin layers of graphene and boron nitride or molybdenum disulfide may pave the way for computer chips based on graphene nanotechnology.

Magnetic storage systems shrink from a million atoms per bit to twelve

Posted by Jim Lewis on January 13th, 2012

An array of 96 iron atoms on a copper nitride surface, assembled using an STM and used to write a byte, demonstrates how small magnetic storage could shrink and may lead to novel nanomaterials for quantum computers.

A molecular switch with a single proton switched by a single electron

Posted by Jim Lewis on December 19th, 2011

How small could a molecular switch be made? It is difficult to think of one smaller than the single proton switch just demonstrated by this group in Germany.

Foresight@Google: Full Program of Speakers posted!

Posted by Christine Peterson on June 2nd, 2011

We are proud to announce our final conference program for Foresight@Google‘s 25th Anniversary Conference Celebration, held June 25-26 in Mountain View, CA.  For $50 off registration use code: NANODOT This weekend – full of plenary talks, panels, and breakout sessions – is a unique opportunity to be stimulated, enlightened and inspired by direct interaction with [...]

A modular molecular composite nanosystem for solar power

Posted by Jim Lewis on May 17th, 2011

A bacterial virus called M13 was genetically engineered to control the arrangement of carbon nanotubes, improving solar-cell efficiency by nearly one-third.

Promise and challenge on the road to practical graphene electronics

Posted by Jim Lewis on April 29th, 2011

Smaller, faster, cooler: graphene transistors show promise for practical analog signal processors, for magnetic memory devices, and for self-cooling electronic circuits.

Controlling the orientation and stretching of DNA attached to a surface

Posted by Jim Lewis on March 15th, 2011

A shear flow processing method has been developed to control the surface attachment and orientation of DNA molecules to use for DNA-organic semiconductor molecular building blocks.

Positional control of chemical reaction a step toward advanced nanotechnology

Posted by Jim Lewis on March 11th, 2011

A step toward advanced nanotechnology has been achieved by using attachment to a surface and confinement by surrounding molecules to make two molecules react to form a product that would not form if they were free to react in solution.

Atomically precise graphene nanotechnology

Posted by Jim Lewis on March 8th, 2011

Sputtering a pattern of zinc atoms on a graphene surface, followed by an acid rinse to remove the zinc, also removes exactly one atomic layer of graphene from where ever the graphene was covered with zinc atoms, forming a pattern on the graphene surface that is atomically precise in the vertical dimension. Resolution in the horizontal dimensions is determined by the mask used to sputter zinc.

Mechanical control of conductance through a single molecule junction

Posted by Jim Lewis on February 20th, 2011

New options to control nanoelectronic systems may arise from the demonstration that mechanical manipulation can control conductance through single molecule electrode junctions.

More on first programmable nanoprocessor

Posted by Jim Lewis on February 14th, 2011

James C. Ellenbogen writes to provide insight and personal perspective on the world’s first programmable nanoprocessor, achieved as the product of a collaboration between Harvard and MITRE, with the team at MITRE comprising Shamik Das, James Klemic, and Ellenbogen.

First programmable nanowire circuits for nanoprocessors

Posted by Jim Lewis on February 9th, 2011

Researchers at Harvard and MITRE have produced the world’s first programmable nanoprocessor

Researchers Develop method to Distinguish Classical from Quantum Behavior in Electrons

Posted by Jim Lewis on December 23rd, 2010

Sometimes the behavior of electrons in nanostructures can be modelled using classical laws of motion, while at other times more computationally challenging quantum methods are necessary to obtain useful results. Christopher W. Ince of the Nanotechnology Research Foundation writes with news of a new method to distinguish classical from quantum behavior in electrons: Researchers from [...]

Molecular building blocks form three-dimensional structures on surfaces

Posted by Jim Lewis on November 27th, 2010

The formation of a supramolecular bilayer is induced by buckyball guest molecules.

Project launched to create and test a molecular-sized processor chip

Posted by Jim Lewis on November 23rd, 2010

Singapore and European Union launch project to create and test a molecular-sized processor chip.

How graphene could complement or replace silicon in electronic applications

Posted by Jim Lewis on November 22nd, 2010

A review article presents the amazing features of graphene and discusses how it might complement or replace silicon for the fabrication of electronic devices.

Graphene research wins Physics Nobel for European nanotechnologists

Posted by Jim Lewis on October 7th, 2010

Unique properties of two-dimensional arrays of carbon atoms promise both immediate applications and advantages for the development of advanced nanotechnology.

Singapore pursues Atom Technology & atomically precise manufacturing

Posted by Christine Peterson on July 6th, 2010

Nanotechnology Now brings news of a recent Atom Technology workshop in Singapore featuring dual Foresight Institute Feynman Prize winner Christian Joachim, Feynman Prize founder Jim Von Ehr of Zyvex Labs and Zyvex Asia, and Foresight Roadmap participant Damian Allis of Syracuse University: Atom Technology is IMRE’s flagship program led by well known scientist Prof. Christian [...]

Scientists Create World’s First Molecular Transistor

Posted by J. Storrs Hall on December 24th, 2009

Scientists Create World’s First Molecular Transistor. Very nice writeup of the research over at Next Big Future. To my mind what’s new here isn’t the transistor per se — semiconducting and conductive states have been known in CNTs for over a decade, and FET and diode-like arrangements of them have been around for the same. [...]