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WHAT DOES SCHOTTKY EFFECT MEAN IN ENGLISH?
The Schottky effect is a phenomenon found in physics. In electron emission devices, especially electron guns, the thermionic electron emitter will be biased negative relative to its surroundings. This creates an electric field of magnitude F at the emitter surface. Without the field, the surface barrier seen by an escaping Fermi-level electron has height W equal to the local work-function. The electric field lowers the surface barrier by an amount ΔW, and increases the emission current. This is known as the Schottky effect or field enhanced thermionic emission. It can be modeled by a simple modification of the Richardson equation, by replacing W by. This gives the equation where ε0 is the electric constant. Electron emission that takes place in the field-and-temperature-regime where this modified equation applies is often called Schottky emission. This equation is relatively accurate for electric field strengths lower than about 108 V m−1. For electric field strengths higher than 108 V m−1, so-called Fowler-Nordheim tunneling begins to contribute significant emission current.
The translations of Schottky effect from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «Schottky effect» in English.
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FREQUENCY OF USE OF THE TERM «SCHOTTKY EFFECT» OVER TIME
The graph expresses the annual evolution of the frequency of use of the word «Schottky effect» during the past 500 years. Its implementation is based on analysing how often the term «Schottky effect» appears in digitalised printed sources in English between the year 1500 and the present day.
Examples of use in the English literature, quotes and news about Schottky effect
10 ENGLISH BOOKS RELATING TO «SCHOTTKY EFFECT»
Discover the use of Schottky effect in the following bibliographical selection. Books relating to Schottky effect and brief extracts from same to provide context of its use in English literature.
Springer Handbook of Electronic and Photonic Materials
In this system the Schottky effect was observed when the Ta electrode was
biassed negatively and tunnelling when it was biassed positively. Similar results
were obtained in CdS films [29.169] using In (ohmic) and Au (blocking) contacts.
Safa Kasap, Peter Capper, 2007
Electronic Properties of Semiconductor Interfaces
... this important contribution of his it is called the Schottky effect. The image-force
concept not only applies to metal-vacuum interfaces but also to metal-
semiconductor contacts. An electron in the depletion layer of the semiconductor
at distance ...
Winfried Mönch, 2004
Plasma Physics and Engineering
8.2.2 Schottky Effect of Electric Field on Work Function and Thermionic Emission
Current As shown, the thermionic current grows with electric field until the
negative space charge near the cathode is eliminated and saturation is achieved.
Alexander Fridman, Lawrence A. Kennedy, 2004
The field emission is very sensitive to small changes of electric field and work
function, including those related to the Schottky effect (2-102). Electron tunneling
across the potential barrier influenced by the Schottky effect and corresponding ...
Alexander Fridman, 2008
Before interpreting the Schottky effect in the metal-semiconductor system, one
can consider this effect in a metal-vacuum system, which will then be extended to
the metal- semiconductor barrier. The minimum energy necessary for an electron
Shigeo(decease) Shionoya, William M. Yen, 1998
The Electrical Characterization of Tantalum Capacitors as ...
5.4 The Schottky Effect The Schottky Effect is very similar to the previously
mentioned Poole-Frenkel Effect. As with PF, the Schottky Effect is charge
emission due to the lowering of a Coulombic barrier by an applied electric field.
Instead of a ...
Brian Holman, 2008
Semiconductor Physical Electronics
Section 10.2 describes the metal work function and the Schottky effect at a metal
—vacuum interface. Thermionic emission theory, used to describe carrier
transport in a metal—semiconductor contact, is presented in Section 10.3. In
Sheng S. Li, 2007
Electrical Transport and the SchottkyEffect in Organic ...
The field of nanotechnology is emerging with the promise of cheap, light weight, and flexible optoelectronics devices.
Wudyalew Wondmagegn, 2007
Academic Press Dictionary of Science and Technology
German physicist; conducted important research in the theory of electrons and
ions; discovered the Schottky effect. Schottky anomaly Solid-State Physics, an
excess contribution to the heat capacity of a solid, particularly at low
Christopher G. Morris, 1992
Introduction To Solid State Physics, 1/e
1 Observed anode current — — — — — — — — — — - True saturation Anode
current, mA Anode voltage, V Figure 7.5: Variation of observed anode current
with anode voltage in a thermionic diode, showing Schottky effect.
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