The creation of potential is restricted by the voltage and current flows.The voltage is provided in such a configuration that the metallic part is positive for the semiconductor part.When these two parts come closer to each other there is the movement of electrons in two directions about the metal and semiconductor region.The potential energy for N region is high than the metallic part.The working operation of this diode is based on the electrons existing in different materials with different potential energy.As there is no hole exist in metals so for forward biased state current is due to free electrons In case of forward biased condition free electrons passes through a metal-semiconductor junction.Schottky diode is a power diode that has high voltage and current ratings then a normal PN junction diode.This diode also called the Schottky diode surface barrier diode or hot electron diode.The Schottky diode name was given due to German physicist Walter H Schottky While in the case of the Schottky diode metallic material such as aluminum or platinum is used in place of P material.The use of P and N materials created the PN junction In the PN junction diode, P and N materials are used to create of PN junction.PN junction diode is used in switching and rectifier circuits.When dc voltage is given to the diode in such configuration the positive terminal of the battery is connected to the anode and the negative to the cathode forward biased state of the diode is created and in opposite polarity revise biased state created.Mostly silicon material is used for the creation of diodes since silicon has the ability to bear high temperatures and operate well in these conditions.The PN junction diode is created through the use of semiconductor materials like silicon, germanium, and gallium arsenide.The diode that hs PN junction is called pn junction diode Through a combination of p and n region pn junction is created.The pn junction diode has P and N region n region has free electrons as majority carriers and P has holes as majority charge carriers.PN junction diode is also known as pn junction semiconductor component.If the diode is in forward biased state current passes through it and not current flows in a reverse-biased state.
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