Junction Transistor
Junction transistor
A junction transistor is a solid-state device. It consists of silicon or germanium crystal containing two PN junctions. The two PN junctions are...
Zener Diode
Zener diode
Zener diode is a reverse biased heavily doped semiconductor (silicon or germanium) PN junction diode, which is operated exclusively in the breakdown region.
The...
Photodiode
Photodiode
A photodiode is again a special purpose p-n junction diode fabricated with a transparent window to allow light to fall...
Solar Cell
Solar cell
A solar cell is basically a p-n junction which generates emf when solar radiation falls on the p-n junction.
It works on the same...
Light Emitting Diode (LED)
Light Emitting Diode (LED)
A light emitting diode (LED) is a forward biased PN junction diode, which emits visible light when energized.
When a junction diode...
PN Junction Diode as a rectifier
Junction Diode as a rectifier
The process in which alternating voltage or alternating current is converted into a direct voltage or direct current is known...
Bias Characteristics of PN Junction Diode
Forwarding Bias Characteristics of PN Junction Diode
The circuit for the study of forwarding bias characteristics of PN junction diode is shown in Fig a....
PN Junction diode
PN Junction diode:
If one side of a single crystal of pure semiconductor (Ge or Si) is doped with acceptor impurity atoms and the other...
Extrinsic Semiconductor
An extrinsic semiconductor is one in which an impurity with a valency higher or lower than the valency of the pure semiconductor is added,...
Intrinsic Semiconductor
A semiconductor which is pure and contains no impurity is known as an intrinsic semiconductor. In an intrinsic semiconductor, the number of free electrons...