Natural sun protection for wood floors and furniture

To keep wood from aging prematurely, it's important to protect it effectively against ultraviolet (UV) radiation. At the same time, people want to retain the look and feel of natural wooden surfaces, but the transparent protective ...

Brightening perovskite LEDs with photonic crystals

All inorganic cesium lead halide perovskite semiconductors exhibit great potential for nanolasers, light emitting diodes and solar cells due to their unique properties, including low threshold, high quantum efficiency and ...

Scientists mimic fireflies to make brighter LEDs

The nighttime twinkling of fireflies has inspired scientists to modify a light-emitting diode (LED) so it is more than one and a half times as efficient as the original. Researchers from Belgium, France, and Canada studied ...

Zeroing in on the elusive green LED

Researchers at Rensselaer Polytechnic Institute have developed a new method for manufacturing green-colored LEDs with greatly enhanced light output.

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