#molecular electronics

[nanotechnologyworld]

NIST finds a sweet new way to print microchip patterns on curvy surfaces

NIST scientist Gary Zabow had never intended to use candy in his lab. It was only as a last resort that he had even tried burying microscopic magnetic dots in hardened chunks of sugar — hard candy, basically — and sending these sweet packages to colleagues in a biomedical lab. The sugar dissolves easily in water, freeing the magnetic dots for their studies without leaving any harmful plastics or chemicals behind. By chance, Zabow had left one of these sugar pieces, embedded with arrays of microm

[materialsscienceandengineering]

Scientists develop molecular sensor that can emit light in more colours than ever before

Physicists at the University of Alberta have created a molecular colourant that can emit light in a wider range of colours than any other molecule currently available.

"This material could have many applications ranging from sensors to biological imaging and optical displays, among others," said former Ph.D. student Stephen Lane, who conducted the research under the supervision of physics professor Al Meldrum.

"For instance, in biological imaging, a change of colour can be used to signal specific biochemical conditions or changes in real time."

The molecule, called P4VB, is versatile and easy to adjust to blue, green or red in the visible colour spectrum, depending on its chemical surroundings. In the study, the researchers note that it could offer a wider colour palette for applications including holographic projectors, vehicle headlights and even IMAX screens.

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[materialsscienceandengineering]

Single Molecule-Based Electronic Devices Explored

In a paper to be published in the forthcoming issue in NANO, a group of researchers from the Shenyang Jianzhu University in China provide an overview of single molecule electronic devices, including molecular electronic devices and electrode types. Future challenges to the development of electronic devices based on single molecules are described, in the hopes of attracting more experts from different fields to participate in this research.

How small can computers be in the future? Can you imagine how molecular machines works?

At present, traditional electronic devices based on semiconductor materials will face severe challenges. These challenges are not only technical and technological limitations, but also, more importantly, theoretical limitations. With the rapid development of nanotechnology and in-depth research, great progress has been made in the theory and practice of molecular electronic devices in recent years

Molecular electronic devices are devices that use molecules (including biomolecules) with certain structures and functions to build an ordered system in the molecular scale or supramolecular scale. They make use of the quantum effect of electrons to work, control the behavior of single electrons, and realize the functions of information detection, processing, transmission and storage, such as molecular diodes, molecular memories, molecular wires, molecular field effect transistors, and molecular switches.

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[nanotechnologyworld]

How small can they get? Polymers may be the key to single-molecule electronic devices | Nanotechnology World Network | Home

Tokyo Institute of TechnologyScientists at Tokyo Institute of Technology and University of Tsukuba demonstrate that polymers could play a key role in the fabri

So, how far down does the rabbit hole go in the field of miniaturization? A research team led by Tomoaki Nishino, Associate Professor of the School of Science at Tokyo Institute of Technology (Tokyo Tech) is exploring the depths of this; in other words, they are working on single-molecule devices.

[timestechnow]

Sensors For Molecular Electronics On A Semiconductor Chip

A programmable semiconductor chip with a scalable sensor array design makes up the molecular electronics platform.

[scitechman]

Molecular Electronics a Molecular Bridge Further

Molecular Electronics a Molecular Bridge Further

Electronics built from molecules could open up new possibilities in the miniaturization of circuits in the future. Empa researchers, together with partners from Switzerland, the Netherlands, Israel, and  the UK, succeeded in solving a crucial detail in the realization of such circuit elements: A molecular bridge for electrons that remains mechanically and electronically stable at room…

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[futuristech-info]

VIDEO: New method fuses organic molecules with graphene - Applications in molecular electronics, sensors, etc.

[futuristech-info]

Self-assembling molecular nanoswitch could advance photovoltaics, memory devices, sensors, and more

Technical University of Munich (TUM) researchers have simulated a self-assembling molecular nanoswitch in a supercomputer study.

As with other current research in bottom-up self-assembly nanoscale techniques, the goal is to further miniaturize electronic devices, overcoming the physical limits of currently used top-down procedures such as photolithography.

The new TUM research focuses on porphine (C20H14N4, the simplest form of porphyrin* organic molecules), interacting on copper and silver surfaces to form a single-porphyrin switch that occupies a surface area of only one square nanometer (porphine itself is much smaller).

READ MORE ON KURZWEIL | AI

Ref: Interfacial charge rearrangement and intermolecular interactions: Density-functional theory study of free-base porphine adsorbed on Ag(111) and Cu(111). The Journal of Chemical Physics (January 2016) | DOI: 10.1063/1.4938259 (open access) | PDF

ABSTRACT

We employ dispersion-corrected density-functional theory to study the adsorption of tetrapyrrole 2H-porphine (2H-P) at Cu(111) and Ag(111). Various contributions to adsorbate-substrate and adsorbate-adsorbateinteractions are systematically extracted to analyze the self-assembly behavior of this basic building block to porphyrin-based metal-organic nanostructures. This analysis reveals a surprising importance of substrate-mediated van der Waals interactions between 2H-P molecules, in contrast to negligible direct dispersive interactions. The resulting net repulsive interactions rationalize the experimentally observed tendency for single molecule adsorption.