You’ve probably heard of light-emitting diodes, a type of energy-efficient light ... lead and exit through the negative lead in order for the LED to work. Circuit diagrams like the one below are used ...

Kids love building electric circuits, but connecting light bulbs to batteries with fiddly wires is tricky for young hands. Play dough and light-emitting diodes (LEDs) solve the problem beautifully.

Schematic diagram of the ... with a wide spectrum in white light applications has obvious advantages, allowing for the realization of single-material white light-emitting devices (WLEDs), avoiding ...

The filament lamp is a common type of light bulb. It contains a thin coil of wire called the filament. This heats up when an electric current passes through it and produces light as a result.

For this new study, the researchers also built a digital display device using perovskite light-emitting diode (PeLED) technology—this one with double the pixel resolution. Current materials used ...