graphene

60% More Efficient Photovoltaic Cells

Author: Hitechpedia   |   
Date: 28.02.2013   |   
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The most often used material in the making of photovoltaic pannels is the silicon. It’s easy to understand why: the silicon generates an electron at each photon absorbed. Still, since a photon contains more energy than an electron can carry, the rest is wasted as heat.

 

The specialists at the Massachusetts Institute of Technology have discovered that, by absorbing one photon, the graphene can generate more electrons. Which means that, whether they are used in the making of the photovoltaic pannels, the graphene can boost the efficiency level to 60% compared with the solar pannels made out of silicon.

 

Recently, the researches at the Institute of Photonic Sciences in Spain published the results of their studies regarding the conductivity level of the graphene. The tests showed the fact that this specific material can be successfully used in the image sensors for the cameras, medical sensors and the night vision optics.

 

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