a conductor made with semiconducting material

diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used

a semiconductor diode that exhibits a sharp increase in reverse current at a well-defined reverse voltage; used as a voltage regulator

a semiconductor rectifier that uses the barrier formed between a specially prepared semiconductor surface and a metal point to produce the rectifying action.

a diode that conducts electrical current only after its breakover voltage, VBO, has been reached momentarily.