Grad student accidentally discovers ultra-efficient white-light LED.
White Light, Less Heat
An accidental discovery at Vanderbilt University may well be the key to making light-emitting diodes the dominant lighting technology of the century. Up until very recently, the only way to make “white” light was to add yellow phosphors to bright blue LEDs. It wasn’t quite right, though, as even the best “white” LED retained a blue tint. This week, we got the news that a chemistry grad student at Vanderbilt has stumbled on a way to make broad-spectrum white LEDs using quantum dots — and in doing so, he may well have kicked off a revolution. (Source: WorldChanging)
I hope they get this into production real soon.
Tags: discovery, efficiency, energy, environment, light, science