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Surface cleaning boosts nanowire solar cell efficiency

Energy losses in nanowire solar cell can be significantly reduced by 'cleaning' the surface of the cells with a special etching method. This has been shown by researchers at Eindhoven University of Technology, Delft University of Technology and Philips. The solar cell has an efficiency of 11.1%, putting it just below the current world record, but it was reached with much less use of material.

Posted: Sep 13th, 2013

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Toward a truly white organic LED

By inserting platinum atoms into an organic semiconductor, University of Utah physicists were able to 'tune' the plastic-like polymer to emit light of different colors - a step toward more efficient, less expensive and truly white organic LEDs for light bulbs of the future.

Posted: Sep 13th, 2013

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Graphene made from DNA template could change electronics

It is difficult to make graphene in forms needed for electronics. Now, researchers from Stanford University have found a new method of making graphene by chemically converting DNA templates into flat sheets of carbon, potentially overcoming that limitation.

Posted: Sep 13th, 2013

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Pushing and pulling droplets with graphene

Scientists have moved liquid droplets using long chemical gradients formed on graphene. The change in concentration of either fluorine or oxygen formed using a simple plasma-based process either pushes or pulls droplets of water or nerve agent simulant across the surface. This new achievement offers potential applications ranging from electronics to mechanical resonators to bio/chemical sensors.

Posted: Sep 12th, 2013

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$24 million project to develop 'body on a chip'

Whether it's the Ebola virus or Sarin and Ricin, a key to responding to chemical or biological attacks is having effective antidotes at the ready. To accelerate the development of new therapies, Wake Forest Baptist Medical Center's Institute for Regenerative Medicine is leading a unique $24 million federally funded project to develop a 'body on a chip' that will be used to develop these countermeasures.

Posted: Sep 11th, 2013

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