CYANOCACTERIA’S PHOTOSYTEM II “powers the planet with solar energy. If there is a design that is perfect for harnessing the energy of the sun, this is it. And we want to use nature as a blueprint to design s new generation of bio-inspired solar cells that builds on the efficient design principles of nature.””
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http://www.ncbi.nlm.nih.gov/m/pubmed/23816912/