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

Solar cell compound probed under pressure

Gallium arsenide a semiconductor composed of gallium and arsenic is well known to have properties that promise practical applications. In the form of nanowires it has particular potential for use in solar cell manufacture and optoelectronics in many of the same applications that silicon is commonly used. But its natural semiconducting ability requires tuning to make it more desirable for use in manufacturing. New work offers a novel approach to such tuning.

Posted: Sep 25th, 2014

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A prison for photons in a diamond-like photonic crystal

A novel type of reso­nant cavity serves as a prison for photons. The cavity confines light in all three dimensions in space inside a photonic crystal. The crystals have a struc­ture similar to how atoms are arranged in diamond gems.

Posted: Sep 25th, 2014

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Self-organized indium arsenide quantum dots for solar cells

Researchers exploit the self-organization of semiconducting nanocrystals by the Stranski-Krasnov (SK) mode of crystal growth for producing ordered, highly dense, and highly uniform quantum dots. This bottom-up approach yields much better results than the conventional photolithographic or top-down methods widely used for the fabrication of nanostructures.

Posted: Sep 25th, 2014

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2-D materials' crystalline defects key to new properties

Understanding how atoms 'glide' and 'climb' on the surface of 2-D crystals like tungsten disulphide may pave the way for researchers to develop materials with unusual or unique characteristics, according to an international team of researchers.

Posted: Sep 24th, 2014

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