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LED Materials Bring White Light and More

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Whether working to create a white LED that consumers like — and that is affordable and sustainable — or finding new applications for LEDs at opposite ends of the spectrum, researchers and manufacturers are finding answers in new materials and in using known materials in new ways.

KAREN A. NEWMAN, GROUP PUBLISHER, [email protected]

Efficiency and stability may make LEDs the lighting choice of the future, but commonly used inorganic materials are expensive and creating the right kind of white light remains a challenge. Researchers around the world are looking for alternatives to cerium, yttrium and other rare-earth elements used in the phosphors added to LEDs to generate white light, and working to create light that will appeal to consumers. Beyond general illumination, LEDs from one end of the spectrum to the other are being used in applications ranging from UV-C water disinfection to near-IR emitters for night...Read full article

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