James Speck: Video and Presentation
Solid State Lighting
Approximately 22% of U.S. electricity is used for lighting purposes. As a result, efficient lighting provides a great opportunity from an energy perspective to reduce CO2 emissions. The use of light-emitting diodes (LEDs) can help take over a hundred coal-fired power plants offline, eliminating over 250 million metric tons of CO2. In order to overcome existing cost challenges, the Materials Department at the University of California, Santa Barbara is working on LED creation at the atomic level. Much progress has been made - LEDs can now produce up to 250 lumens per watt - but the research continues, particularly on cost reduction and on solving the green gap.