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Differentiate Between Schottky contacts and Ohmic contacts.

written 23 months ago by prajapatijaimin • 3.2k

•   modified 23 months ago

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written 23 months ago by prajapatijaimin • 3.2k

Solution:

Schottky contacts	Ohmic contacts.
It is rectifying contact that allows current to flow one way	It is non rectifying contact. Allows current to flow in forward and reverse direction
$\phi_m\lt\phi_s$ for p-type $\phi_m\gt\phi_s$ for n-type	$\phi_m\gt\phi_s$ for type $\phi_m\lt\phi_s$ for n type
It refers to metal-semiconductor contact having a large barrier height and low doping concentration ice. less than the density of states in the conduction band or valance band	It is defined as metal contact then has negative contact resistance relative to the bulk or series resistance of the semiconductor.
conduction band bands away from the friend and semiconductor get intrinsic in this region	The conduction band is lower than the fermi energy near the metal sem. interface The sem. behaves like a metal in this region

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