Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...
Fukuoka, Japan—An international team of researchers from Japan and Germany has developed a new system that upconverts blue LED light into high-energy Ultraviolet B, or UVB, light. As the system does ...
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