See the light

Just as we’ve all (hopefully) finally made the switch to energy-saving fluorescent light bulbs, researchers at the University of Glasgow have announced a way of utilising LEDs for household lighting.

LEDs are currently used in computers and mobile phones and are significantly more energy efficient, but because of the way they are designed they trap a lot of light, and have not been bright enough for household lighting uses. However, by creating microscopic holes in the surface of LEDs, more light can escape resulting in a brighter light for no more energy consumption. But the process is costly and inefficient.

Researchers at the University of Glasgow have used nanoimprint lithography to create the holes, which can be done on billions of LEDs for much lower cost. LEDs also last far longer than even current energy-efficient fluorescent bulbs.