Discussione: cella solare rivoluzionaria

Non usa semiconduttori:

Solar power without solar cells: A hidden magnetic effect of light could make it possible

Se leggi l'articolo l'uso pratico non sembra molto vicino, ne molto interessante.

The light must be shone through a material that does not conduct electricity, such as glass. And it must be focused to an intensity of 10 million watts per square centimeter. Sunlight isn’t this intense on its own, but new materials are being sought that would work at lower intensities, Fisher said.

“In our most recent paper, we show that incoherent light like sunlight is theoretically almost as effective in producing charge separation as laser light is,” Fisher said.

This new technique could make solar power cheaper, the researchers say. They predict that with improved materials they could achieve 10 percent efficiency in converting solar power to useable energy. That’s equivalent to today’s commercial-grade solar cells.

Quindi sono necessarie concentrazioni di MW/cm quadrato ed il rendimento sarebbe del 10 %.
Naturalmente i ricercatori sono ottimisti per futuri sviluppi, ma questo e' tipico, si fanno intravedere cose che sono ancora solo vagamente possibili.

Se son rose fioriranno.

ciao