Friday 13 May 2016

'Nanocavity' may improve ultrathin solar panels, video cameras and more

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Recently, engineers placed a single layer of MoS2 molecules on top of a photonic structure called an optical nanocavity made of aluminum oxide and aluminum. The results are promising. The MoS2 nanocavity can increase the amount of light that ultrathin semiconducting materials absorb. In turn, this could help industry to continue manufacturing more powerful, efficient and flexible electronic devices.
via Science Daily

Surprising new properties in a 2-D semiconductor

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Researchers found how substantial linear defects in a new semiconductor create entirely new properties. Some of these properties indicate the defects might even mediate superconducting states.
via Science Daily

Hubble spies a spiral snowflake

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Together with irregular galaxies, spiral galaxies make up approximately 60 percent of the galaxies in the local universe. However, despite their prevalence, each spiral galaxy is unique -- like snowflakes, no two are alike. This is demonstrated by the striking face-on spiral galaxy NGC 6814, whose luminous nucleus and spectacular sweeping arms, rippled with an intricate pattern of dark dust.
via Science Daily
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ISS and Mercury Too

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Transits of Mercury are relatively rare. Monday's leisurely 7.5 hour long event was only the 2nd of 14 Mercury transits in the 21st century. If you're willing to travel, transits of the International Space Station can be more frequent though, and much quicker. This sharp video frame composite was taken from a well-chosen location in Philadelphia, USA. It follows the space station, moving from upper right to lower left, as it crossed the Sun's disk in 0.6 seconds. Mercury too is included as the small, round, almost stationary silhouette just below center. In apparent size, the International Space Station looms larger from low Earth orbit, about 450 kilometers from Philadelphia. Mercury was about 84 million kilometers away. (Editor's note: The stunning video includes another double transit, Mercury and a Pilatus PC12 aircraft. Even quicker than the ISS to cross the Sun, the aircraft was about 1 kilometer away.)

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Microwaved nanoribbons may bolster oil and gas wells

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Researchers have microwaved composite materials of graphene nanoribbons and thermoset polymers to dramatically reinforce wellbores.
via Science Daily

How silver could be key to gold-standard flexible gadgets

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New research has described how silver nanowires are proving to be the ideal material for flexible, touch-screen technologies while also exploring how the material can be manipulated to tune its performance for other applications.
via Science Daily