What Is A Light-Emitting Diode? A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. LEDs function by converting electrical current into ...
Engineers in Switzerland have built light-emitting diodes so small that hundreds could line up across the width of a single ...
To demonstrate the potential of their nano-organic light-emitting diodes (OLEDs), the team formed the university’s logo from 2,800 individual diodes. The structure was only 20 micrometers tall, which ...
A light source created by a light emitting diode (LED). For decades, LEDs have been used as indicator lights on myriad products; however, starting in the 2000s, they began to replace incandescent, ...
As people across the globe are switching to LED lights in an effort to save energy and money, they may be making another problem worse. Light pollution has been a growing problem for decades, and the ...