Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
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.
Keywords:
Band engineering, Heterojunction, Schottky contact, Ohmic contact.
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Authors:Bentham Science Books