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Metal Semiconductor Contacts Schottky Diodes

Sunipa Roy, Chandan Kumar Ghosh, Sayan Dey, Abhijit Kumar Pal

Abstract

Metal-Semiconductor-Junction is also called heterojunction since the material on each side of the junction is not identical. The normal pn junction diode concept can also be applied here. There are two probable types of metal.semiconductor junctions: Schottky junction and ohmic junction. When the work.function of metal is greater than the work-function of a semiconductor, then this is called Schottky junction. Ohmic junctions are the junctions in which the work function of the metal is less than the work function of a semiconductor. Their band engineering discussed in detail the essentials of junction physics.

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Available abstract

Key concepts: Schottky diode, Ohmic contact, Electrical junction, Metal–semiconductor junction, Semiconductor, Schottky barrier, Work function, Optoelectronics