Coating can drive down white LED light prices

The cost of white LED lighting may be set to fall as scientists in the US have created an LED coating made from a relatively cheap luminescent metal–organic framework (MOF).  The film may supplant current white LED coatings, which consist of far more expensive rare earth elements.

Modern LED technologies are being touted as the next leap forward in solid state lighting, and offer a more efficient alternative to common incandescent or halogen light bulbs. ‘You can see LEDs everywhere,’ said Zhichao Hu from Rutgers University, speaking at the 250th ACS National Meeting & Exposition in Boston, US. ‘But not a lot of us know how to make a white LED.’