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Light propagation in solar cells made visible

How can light which has been captured in a solar cell be examined in experiments? Scientists have succeeded in looking directly at light propagation within a solar cell by using a trick. The photovoltaics researchers are working on periodic nanostructures that efficiently capture a portion of sunlight which is normally only poorly absorbed.

Posted: Dec 5th, 2014

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Filming chemistry with a high speed x-ray camera

A chemical reaction is a rearrangement of atoms in and between molecules, the breaking of old and the formation of new bonds. The glue that binds atoms in molecules and creates the bonds between them is made out of valence electrons. Scientists were able to show theoretically that the ultrafast x-ray camera is not only sensitive to inert core electrons but may also visualize the motion of chemically active valence electrons.

Posted: Dec 5th, 2014

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Graphen gegen Reibung und Verschleiss

Mit atomistischen Simulationen ist es Forschern gelungen, das Verhalten einer Graphenschutzschicht auf Platin (111) unter verschiedenen Anpressdrücken auf atomarer Ebene präzise abzubilden.

Posted: Dec 5th, 2014

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The finer details of rust

The behaviour of iron oxide surfaces has startled scientists for years. New research shows that everybody has been thinking about them all wrong.

Posted: Dec 5th, 2014

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Smallest possible diamonds form ultra-thin nanothreads

For the first time, scientists have discovered how to produce ultra-thin diamond nanothreads that promise extraordinary properties, including strength and stiffness greater than that of today's strongest nanotubes and polymers.

Posted: Dec 4th, 2014

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Electronic 'tongue' to ensure food quality

An electronic 'tongue' could one day sample food and drinks as a quality check before they hit store shelves. Or it could someday monitor water for pollutants or test blood for signs of disease.

Posted: Dec 3rd, 2014

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