8. Toward a Simpler White Organic LED Design
Organic light emitting diodes (OLEDs), because of their remarkable efficiency and low-energy consumption, show great promise in meeting home and business lighting needs. One of the remaining hurdles to deploying these more broadly, however, is the challenge of producing white light, which is currently generated through a complex design that combines multiple color emitters. Research is underway to develop an efficient white OLED that uses a single, broadband emitter. Full presentation information.
9. Improving Efficiency with Photonic Crystal Sandwiches
"Tandem" solar cells can increase energy efficiency by combining multiple materials that absorb different frequencies of light. But they are difficult to manufacture because only certain materials are compatible, and minor defects can have a major impact on the ability of two adjacent materials to work together. Researchers in Germany have discovered that 3-D photonic crystals sandwiched between two different absorbing materials can manage the flow of photons within a tandem solar cell, preventing one material from interfering with the light-absorbing abilities of the other, and making it easier to manufacture tandem solar cells on a large scale. Full presentation information.
10. Plasmonics for Better Light Trapping
In their quest for more efficient sunlight-to-energy converters, scientists are exploring the light-controlling properties of metals i
|Contact: Angela Stark|
Optical Society of America