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Term (Index) Definition
potential barrier  increased potential at the junction between two materials featuring different work function; e.g. p-type and n-type semiconductor (p-n junction) or metal-semiconductor contact (Schottky diode); there is an electric field present in the barrier region; the width of the potential barrier depends on the semiconductor doping; the height of potential barrier changes with applied bias voltage (reverse bias - high potential barrier, forward bias - low potential barrier) which makes junction to display diode-like current-voltage characteristics.
junction, p-n  n-type and p-type semiconductors are brought into contact in order to create a potential barrier; height ofthe potential barrier is controlled by the voltage applied between p- and n-type regions; homojunctions n- and p-type regions are formed in the same semiconductor typically by locally changing its doping from p to n, or vice versa ; in heterojunctions n- and p-type regions are made out of different semiconductors.
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Created and operated by J. Ruzyllo. Copyright J. Ruzyllo 2001-2016. All rights reserved.

Information in this glossary is provided at the author's discretion. Any liability based on, or related to the contents of this glossary is disclaimed.