The quest for white LEDs
AUG 20, 2009
DOI: 10.1063/PT.5.023613
Science : White light–emitting diodes (LEDs) have already cracked several niche lighting markets, such as flashlights and bike lights. But they’re still not ready to go head to head with cheaper incandescent bulbs and fluorescents that dominate the nearly $100 billion global lighting market. A new spate of advances, however, suggests that the whitecoats are coming. “There is steady movement and progress in the field,” says E. Fred Schubert, an electrical engineer and LED expert at Rensselaer Polytechnic Institute (RPI) in Troy, New York.
© 2009 American Institute of Physics
