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A new device harnesses shadows to generate electricity

NOT ONLY THE BRIGHTEST LIGHT BUT ALSO THE DARKEST SHADOW CAN GENERATE ELECTRICITY
Researchers from NUS(National University of Singapore) give shadows a positive spin by generating electricity by developing a device shadow-effect energy generator (SEG) from a very overlooked optical effect.
                                                         Source: ScienceNews
“​We can harvest energy anywhere on Earth, not just open spaces,” says SweeChing Tan, a materials scientist at the National University of Singapore.
Tan and his team created the device, called a shadow-effect energy generator (SEG) by placing a superthin coating of gold on silicon wafer, a typical solar cell material.
In conventional photovoltaic or optoelectronic applications where a steady source of light is used to harvest power,the presence of shadows during the day will cause significant decrease in electricity production. Contrary to this ‘the shadow-effect’ capitalizes on the illumination contrast caused by shadows as an …

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