Orange LED changes color when cooled by Liquid Nitrogen

About

Orange LED changes color when cooled by Liquid nitrogen to -196°C

At lower temperature band gap in semiconductors widens, which means that in LED emitted photons would have higher energy. This effect if especially pronounced in orange LED's.

Archive

Wikimedia Commons, in Wikimedia Commons

Licence or status

CC BY 3.0, as the Wikimedia Commons states it.

Rights statement

Creative Commons Attribution 3.0

Credit

BarsMonster

Who can watch

The archive gives no rating. Invisible Network shows it to Tweens profiles and older, judged from its collection and subjects. How films are placed