Publication

Electrical characterization of Au/SiOx/n-GaAs junctions

Giorgio Margaritondo
1998
Journal Articles

Abstract

The electrical behavior of Au/SiOx/n-GaAs Schottky structures has been studied using a statistical approach. II has been concluded that the obtained unusual electrical behavior is connected mainly with different Fermi-level pinning position and lateral microinhomogeneities of the barrier height induced by different average thickness of the SiOx interlayer along the wafer. The results of cross-sectional transmission electron microscopy and the temperature dependence of the electrical characteristics confirm this conclusion. (C) 1998 Elsevier Science Ltd. All rights reserved.

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https://infoscience.epfl.ch/entities/publication/49361acb-3bc5-4ad5-827d-7a615437391c

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Giorgio Margaritondo
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/49361acb-3bc5-4ad5-827d-7a615437391c

About this result

Related concepts (28)

Fermi level

The Fermi level of a solid-state body is the thermodynamic work required to add one electron to the body. It is a thermodynamic quantity usually denoted by μ or EF for brevity. The Fermi level does not include the work required to remove the electron from wherever it came from. A precise understanding of the Fermi level—how it relates to electronic band structure in determining electronic properties; how it relates to the voltage and flow of charge in an electronic circuit—is essential to an understanding of solid-state physics.

Metal–semiconductor junction

In solid-state physics, a metal–semiconductor (M–S) junction is a type of electrical junction in which a metal comes in close contact with a semiconductor material. It is the oldest practical semiconductor device. M–S junctions can either be rectifying or non-rectifying. The rectifying metal–semiconductor junction forms a Schottky barrier, making a device known as a Schottky diode, while the non-rectifying junction is called an ohmic contact.

Band diagram

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. These diagrams help to explain the operation of many kinds of semiconductor devices and to visualize how bands change with position (band bending). The bands may be coloured to distinguish level filling. A band diagram should not be confused with a band structure plot.

Related publications (12)

Electrical characterization of Au/SiOx/n-GaAs junctions

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