| am vazut multe(2008-02-22) -- The electrons in nanoparticles of noble metal oscillate together apace with the frequency of the light. This phenomenon can be exploited to produce better and cheaper solar cells, scientists have shown. Electricity-generating solar cells are one of the most attractive alternatives for creating a long-term sustainable energy system, but thus far solar cells have not been abl e to compete economically with fossil fuels. Researchers are now looking at how nanotechnology can contribute in bringing down the cost. |
