Scientists Invent New Material for Warm-White LEDs

Light emitting diodes (LEDs) are known for their energy efficiency and durability, but the bluish, cold light of current white LEDs has precluded their widespread use for indoor lighting. Now, University of Georgia scientists have fabricated what is thought to be the world's first LED that emits warm white light using a single light emitting material, or phosphor, with a single emitting center for illumination.