A UK research group has fabricated perovskite solar cells that can harvest energy from near-ultraviolet (UV-A) indoor LED lights. The devices achieved an efficiency of 26.19%, an open-circuit ...

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Could a solar-powered hand sanitizer protect against COVID-19 ... UV-C light is well established as a germicide, but so far, only a specific kind called far UV-C light is safe for human exposure.

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Future windows could change their tint or opacity on demand to keep out unwanted heat, light or nosy neighbors. A team from Princeton has now developed a self-powered “smart window” system ...

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Enhanced Light Transmission: The film maintains an average transmittance of 17.69% in the 290–380nm range, retaining stability under damp heat and UV aging conditions. Breaking Patent Barriers ...

Solar-powered lights are a popular lighting option for gardens, but the battery life doesn't last forever and can be frustrating for some homeowners. advertisement. The Mirror US.