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Solar Smackdown: Photovoltaics vs. Photosynthesis

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PHOENIX, May 16, 2011 — Because photosynthesis and photovoltaics harvest energy from the sun in distinctly different ways and produce different fuels, it is difficult to compare energy conversion efficiency. "In order to make meaningful comparisons between photosynthesis (which provides stored chemical potential) and photovoltaic technology (which provides instantaneous electrical power), we considered photovoltaic driven water electrolysis to yield hydrogen using existing technology as an example of artificial photosynthesis," explained Thomas Moore, director of the Center for Bioenergy and Photosynthesis at...Read full article

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    Published: May 2011
    Glossary
    electrolysis
    Conduction of an electric current through a chemical compound in its natural state, solution or as a molten, to decompose the compound.
    photochemistry
    The study of chemical reactions stimulated by the properties of light.
    AmericasArizona State UniversityBasic Scienceelectrolysisenergyenergy conversiongreen photonicshydrogen productionLight Sourceslight-gathering antenna systemsphotochemistryphotosynthesisphotovoltaicsResearch & Technologysolar cellssolar-to-electricalThomas Moore

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