Publication

Interface formation and chemical reactions on metal-GaTe(001) surfaces

Giorgio Margaritondo, Helmuth Berger
1997
Journal Articles

Abstract

We studied using x-ray photoelectron spectroscopy the deposition of Au, In, Ag and Al overlayers onto clean-cleaved GaTe(001) surfaces at room temperature. The first steps of the Schottky barrier formation on Au and In showed no interface reactions. Free Te release was observed after the deposition of 3.5 Angstrom of silver. On the other hand, the deposition of Al leads to an exchange chemical reaction where clustering dominates at high metal coverage.

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https://infoscience.epfl.ch/entities/publication/665081f6-5925-4a35-817e-e5b543689d42

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Giorgio Margaritondo, Helmuth Berger
1997
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/665081f6-5925-4a35-817e-e5b543689d42

About this result

Related concepts (32)

Chemical reaction

A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation. Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur.

Chemical kinetics

Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a reaction occurs but in itself tells nothing about its rate. Chemical kinetics includes investigations of how experimental conditions influence the speed of a chemical reaction and yield information about the reaction's mechanism and transition states, as well as the construction of mathematical models that also can describe the characteristics of a chemical reaction.

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.

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Interface formation and chemical reactions on metal-GaTe(001) surfaces

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