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Nanotechnology General News

The latest news from academia, regulators
research labs and other things of interest

Like fish on waves: electrons go surfing

Researchers were able to define two little quantum dots (QDs), occupied with electrons, in a semiconductor and to select a single electron from one of them using a sound wave, and then to transport it to the neighbouring QD. A single electron "surfs" thus from one quantum dot to the next like a fish on a wave. Such manipulation of a single electron will in the future also enable the combination of considerably more complex quantum bits instead of classical bits.

Posted: Sep 22nd, 2011

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How phase segregation affects efficiency in organic photovoltaics

Recent theoretical work conducted at the NIST Center for Nanoscale Science and Technology explains the surprisingly small effect of macroscale phase segregation on the overall efficiency of blended organic photovoltaic materials by showing that electrons can effectively burrow through a skin layer to get to the device's cathode.

Posted: Sep 21st, 2011

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New 'smart window' system with unprecedented performance

A new 'smart' window system has the unprecedented ability to inexpensively change from summer to winter modes, darkening to save air conditioning costs on scorching days and returning to crystal clarity in the winter to capture free heat from the sun, scientists are reporting.

Posted: Sep 21st, 2011

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"You get to see the impact of your research"

As part of IBM Research's newly extended global Summer intern program, eight undergraduate students from Rensselaer Polytechnic Institute (RPI), Union College, and University of Notre Dame, joined IBM Research Zurich in Switzerland for two months.

Posted: Sep 21st, 2011

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New hybrid carbon nanomaterial synthesized

New hybrid carbon material, which combines both graphene and SWNTs, Graphene Nanoribbons encapsulated into Single-Walled Carbon Nanotubes (GNR@SWNTs) have been discovered by researchers from Aalto University (Finland) and Umea University.

Posted: Sep 21st, 2011

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Researchers get first detailed look at nitrogen doping in single-layer graphene

Researchers used a combination of four techniques to make the first detailed images of nitrogen-doped graphene film. They showed that individual nitrogen atoms had taken the places of carbon atoms in the two-dimensional sheet; that about half of the extra electron contributed by each nitrogen atom was distributed throughout the graphene lattice; and that this changed the electronic structure of the graphene sheet only within a short distance - about the width of two carbon atoms - from the dopant atoms.

Posted: Sep 21st, 2011

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