Engineering

Solar cells gain efficiency by emitting light in fewer directions

Solar cells absorb sunlight and convert it into electricity. This process, however, is not perfect, and a large part of the solar energy is simply lost along the way. Some of it is lost as heat, while photons with insufficient ...

Energy & Green Tech

Solar-powered trashcan lid insert gets rid of garbage stink

Garbage left outside starts smelling unpleasant very quickly, especially in warm, humid climates that accelerate food decay. In ACS' Environmental Science & Technology, researchers report a solar-powered lid insert that fits ...

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