Assertion: led | /r/HasProperty | a pn junction
Facets:
Source sentences:
text: It is a PN junction that emits or produces light when an electric current passes through it.
text: LEDs, although they are still PN junctions, are not made from silicon (which will emit infrared light), and therefore can be made to emit visible light.
text: Light-emitting diodes (LEDs) are p-n junctions that emit light when a current flows through them.
text: As we have mentioned above, a Light emitting diode is a PN junction.