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Solar reverse luminous solar panels
It's a sort of solar panel in reverse, which works by emitting light rather than absorbing it. With their large temperature differences between day and night, deserts make ideal locations for thermoradiative diodes, which generate electricity when they are hotter than their surroundings. . But a team of scientists in Australia is working on a way to fix that problem by developing a novel type of solar panel that could work at night. But if you take a warmer object and point it someplace cold it will radiate heat toward it in the form of infrared light.
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