News tagged with light emitting diode

Laser diodes versus LEDs

Solid-state lighting based on light-emitting diodes (LEDs) is the most efficient source of high color quality white light. Nevertheless, they show significant performance limitations such as the "efficiency ...

Nov 11, 2013
4.8 / 5 (4) 0

'Greening' your flat screen TV

Electronic products pollute our environment with a number of heavy metals before, during and after they're used. In the U.S. alone, an estimated 70% of heavy metals in landfill come from discarded electronics. ...

Aug 25, 2010
5 / 5 (3) 0 | with audio podcast

Scientists grow 'sea urchin'-shaped structures

Swiss researchers have succeeded in growing sea-urchin shaped nanostructures from minute balls of polystyrene beads using a simple electrochemical process. The spines of the sea urchin consist of zinc oxide ...

Jul 29, 2010
5 / 5 (7) 0 | with audio podcast

New material for nanoscale computer chips

Nanochemists from the Chinese Academy of Sciences and Nano-Science Center, Department of Chemistry at University of Copenhagen have developed nanoscale electric contacts out of organic and inorganic nanowires. ...

Aug 17, 2009
5 / 5 (4) 2