LEDs Are Going on a Diet As the demand for thinner devices - TopicsExpress

LEDs Are Going on a Diet As the demand for thinner devices rises, semiconductor companies are racing against time to develop components that are smaller and more efficient while remaining flexible and strong. This month, a University of Washington team of scientists built the thinnest-known functional LED, which is only three atoms thick! Today’s commercial LEDs are at least 10 to 20 times thicker than this, while a human hair is 10,000 times thicker. This brand new skinny LED is made out of sheets of tungsten diselenide. Since its a semiconductor, this breakthrough opens doors to implement almost any existing design in an extremely flat, 2-D approach. But its not only about LEDs for a whole new range of wearable, displays, and paper-thin electronics. This could also dramatically improve efficiency if scientists are able to make completely optical circuits, instead of electrical ones. Diets are hard, but at least it seems that in electronics theyre worth it.

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