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The Schottky diode (named after the German physicist Walter H. Schottky), also known as Schottky barrier diode or hot-carrier diode, is a semiconductor diode formed by the junction of a semiconductor with a metal. It has a low forward voltage drop and a very fast switching action.
A Schottky diode is a single metal–semiconductor junction, used for its rectifying properties. Schottky diodes are often the most suitable kind of diode when a low forward voltage drop is desired, such as in a high-efficiency DC power supply. Also, because of their majority-carrier conduction mechanism, Schottky diodes can achieve greater ...
Band diagram for Schottky barrier at equilibrium Band diagram for semiconductor heterojunction at equilibrium In solid-state physics of semiconductors , a band diagram is a diagram plotting various key electron energy levels ( Fermi level and nearby energy band edges) as a function of some spatial dimension, which is often denoted x . [ 1 ]
The Schottky diode, also known as the Schottky-barrier diode, was theorized for years, but was first practically realized as a result of the work of Atalla and Kahng during 1960–1961. [ 23 ] [ 24 ] They published their results in 1962 and called their device the "hot electron" triode structure with semiconductor-metal emitter. [ 25 ]
Absorption is the active process in photodiodes, solar cells and other semiconductor photodetectors, while stimulated emission is the principle of operation in laser diodes. Besides light excitation, carriers in semiconductors can also be generated by an external electric field, for example in light-emitting diodes and transistors.
The most commonly used are Schottky diodes or p-n junctions. In the measurement process the steady-state diode reverse polarization voltage is disturbed by a voltage pulse . This voltage pulse reduces the electric field in the space charge region and allows free carriers from the semiconductor bulk to penetrate this region and recharge the ...
Job applicants with Jewish names or Jewish-linked prior employers were less likely to get responses for administrative assistant gigs, a troubling new study by the Anti-Defamation League Wednesday ...
Shockley derives an equation for the voltage across a p-n junction in a long article published in 1949. [2] Later he gives a corresponding equation for current as a function of voltage under additional assumptions, which is the equation we call the Shockley ideal diode equation. [3]