Scientists Find a Cheaper Way to Light Up OLED Screens

Iridium, the world’s rarest naturally occurring element, is what provides the color and light for OLED screens in your phone or TV—but it won’t last forever. It exists in a finite quantity on our planet. But scientists have finally found a way to get copper—present in abundance in the earth’s crust—to reach iridium-like efficiency in its emission of light.

Read the full article on Science Daily →