Double the Efficiency, Double the Fun? Two Sided Solar Cells?

October 29, 2008 at 10:15 pm 1 comment

I ran across an interesting concept today, 2 sided solar cells.  A Swiss scientist, Michael Grätzel of the Swiss Federal Institute of Technology in Lausanne, Switzerland ( has come up with a concept where a solar cell can be doubly efficient as it can collect light for both sides.

The article can be found on New (

Excerpt: “Solar cells could become cheaper and more efficient, thanks to a cheap dye-based design that can capture sunlight from both sides simultaneously.

Dye-sensitized solar cells contain no silicon, but instead rely on the interaction between light and a dye coated on to tiny grains of titanium dioxide, a cheap white pigment.

The grains sit in a liquid that acts as an electrolyte, picking up electrons released by the dye as it absorbs light, generating current.

This is a very interesting concept in that it takes a different approach to generating solar power than the silicon panel.  I hope that they can continue to develop this and bring it to market soon!

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Entry filed under: News, Solar Power, Technology. Tags: , , .

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1 Comment Add your own

  • 1. Total Solar Energy  |  December 17, 2008 at 7:28 am

    yes, getting it to market is the thing. how many of these new technologies never even make it to market? i’m always on the look out for a investment but it’s hard predicting which one will come off.


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