Solar cells made with films mimicking the structure of the mineral perovskite are the focus of worldwide research. But only now have researchers at Case Western Reserve University directly shown the ...
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GRAND RAPIDS, MI -- Grand Rapids leaders have approved a $9.46 million contract to convert all city street lights to LED lights. City officials say the move will generate about $350,000 annually in ...
In an attempt to cut greenhouse emissions, Boston is embarking on a plan to convert all its electric lighting to efficient LED fixtures. When compared with things like transit and heat, lights may ...
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