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Photovoltic electrolysis - generates Hydrogen

Capt'n Midnight · 2005-03-21 18:12:50

The main problem with Fuel cells is producing hydrogen, by generating it directly from sunlight you skip a lot of losses and the cell acts by using more than one wavelegth of light at a time to break chemical bonds that the either wavelength of light could not do by itself. http://www.hydrogensolar.com/basics.html

21-03-2005 6:12pm

#1

Capt'n Midnight

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The main problem with Fuel cells is producing hydrogen, by generating it directly from sunlight you skip a lot of losses and the cell acts by using more than one wavelegth of light at a time to break chemical bonds that the either wavelength of light could not do by itself.

http://www.hydrogensolar.com/basics.html

The Tandem Cell™ consists of two photo-catalytic cells in series: the front cell absorbs the high energy ultraviolet and blue light in sunlight, using nano-crystalline metal oxide thin films to generate electron-hole pairs. The longer wavelength light in the green to red region passes through the front cell and is absorbed in a Graetzel Cell producing electrical potential under nearly all light conditions The two cells are connected electrically and together provide the potential required to split the water molecules in the electrolyte. The Cell is fabricated from widely-available and cheap materials.

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