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New solar panels with less tech New graphene

Researchers at a California Institute of Technology have developed a flexible solar panel that uses only 1 percent of the material used in conventional panels. Describes features a digital edition of the journal Nature Materials. "Unlike other solar panel designs, the new high efficiency achieved in converting light into energy. Possible uses for this panel as light and efficient could range from sunroofs to devices placed in cars to clothing.
The researchers, led by Harry Atwater, achieved these high levels of absorption of light using much less amount of semiconductor material used in your device, small rods of silicon the size of micrometers. The incoming light bounces many times between the sticks on the device until it is absorbed.
To ensure that the light is directed more efficiently, the scientists used small nanoparticles of aluminum reflectors located between the rods. The overall result is that up to 85 percent of usable sunlight that reaches the device is absorbed by it. This innovative design

have fewer resources to reducing the cost of this technology more affordable producciónHaciendo alternative. That being the sun for everyone, we all benefit from clean energy that can give us warmth.

source: Nature Materials Magazine · ¨

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Graphene has become a key component in future electronics, allowing the chips to work up to a thousand times faster than today. Its many properties with the simplicity of its structure and composition have become a material that could replace conventional silicon electronics in just a few years. The possibilities opened up by this compound is one of the cornerstones of the national conference on the physics of matter being held these days at the University of Zaragoza.

The Hall of the Auditorium is home to nearly 200 scientists from universities English research centers and foreigners in the VI Special Meeting of the Solid State Physics, the Royal English Physical Society (chiefs 2010). At the opening of the event was attended by the Vice Chancellor for Research at the University of Zaragoza, José Ramón Beltrán, the Deputy Dean of Science, Concepcion Village, the director of the Institute of Materials Science of Aragon, Ramon Burroughs, the president of the organizing committee Fernando Bartolomé, and the director of the Royal English Physical Society in Aragon, Alberto Carrion.
The conference is the keynote speaker scientist Konstantin Novoselov, professor at the University of Manchester, which took about four years ago with an imaginative approach to isolate graphitic layers of a single atom thick. Professor Novoselov, with its inaugural conference on the chemistry and physics of graphene, has shared with attendees the peculiarities of their discovery.
Graphite, the material from the mines of pencils, is made of layers of carbon atoms arranged like a honeycomb. Graphene, in fact, corresponds to one of these layers. Kostya Novoselov imagined that "smearing" a strip of graphite deposited zeal, painting with a pencil on paper and then using that zeal as a seal on a clean, could find pieces of graphene isolated and accessible to modern atomic microscopes. Surprisingly, his intuition proved accurate, and since the physics of graphene, both experimental and theoretical has been an explosion of surprises and creativity, as Fernando now stands Bartholomew, a researcher at the Institute of Materials Science of Aragon (CSIC-Universidad de Zaragoza) and president of the local committee of the congress.
For example, graphene has already been used to manufacture electronic prototypes (chips) operating up to a thousand times faster than conventional electronics today are increasingly used in electronic devices. So they say that graphene could be the replacement for silicon in the electronics of the future, although this is still far from done, as Fernando Bartolomé points. Professor Novoselov
not only imagined this method of production but has made some major discoveries about the physics of graphene derivatives. Therefore, it has received, among others, Nicholas Kurti Prize, the Europhysics Prize and the Young Scientist Award of the International Union of Pure and Applied Physics (IUPAP).
highlights during the conference attended by José Luis Martínez, director for France of the European neutron source in Grenoble (Institute Laue - Langevin) and Salvador Ferrer, scientific director of the English Synchrotron ALBA, which opens with all the protocol of the English EU presidency in March.

Source: Universidad de Zaragoza