Scientists create super-thin 2D LEDs
University of Washington three-atom thick LEDs are thinnest usable light source yet.
“We are able to make the thinnest-possible LEDs, only three atoms thick yet mechanically strong. Such thin and foldable LEDs are critical for future portable and integrated electronic devices,” said Xiaodong Xu, a UW assistant professor in materials science and engineering and in physics.
The UW’s LED is made from flat sheets of the molecular semiconductor known as tungsten diselenide, a member of a group of two-dimensional materials that have been recently identified as the thinnest-known semiconductors.
In addition to light-emitting applications, this technology could be used as interconnects in nano-scale computer chips instead of electricity, which would maintain high bandwidth but without the heat or wasted power.
Xu along with Jason Ross, a UW materials science and engineering graduate student, co-authored a paper about this technology that appeared online March 9 in Nature Nanotechnology.