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Previous attempts to build biogenic solar cells – that is, living organisms – have focused on extracting the natural dye that bacteria use for photosynthesis. It is an expensive and complex process that requires toxic solvents. The alternative of UBC researchers is however to leave the dye in the bacteria. They coat them with a mineral that acts as a semiconductor and applies the mixture to a glbad surface. In addition to innovating more sustainable cell production, the invention also aims to provide electricity on cloudy days, according to researchers: "With sufficient optimization, our hybrid material can compete with cells." conventional solar cells with comparable efficiencies, "says Vikramaditya Yadav, professor of chemistry. and biological technology. Once fully developed, these solar cells powered by bacteria are not only economical in the production of electricity, but also in their production.
_kl / Source: UBC
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