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Band-Like Electron Transport with Record-High Mobility in the TCNQ Family

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Nicola Marzari, Marco Gibertini
2015

Abstract

The occurrence of extremely pronounced band-like transport with very high electron mobility in fluorinated tetracyanoquinodimethane (F2-TCNQ) single-crystal field-effect transistors is discovered. This finding identifies the Fx-TCNQ family as a paradigm to investigate the fundamental aspects of electronic transport in organic crystals. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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https://infoscience.epfl.ch/entities/publication/dff72b70-ead4-43c6-8c8f-7c0e10be3a4c

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Related concepts (22)

Electron mobility

In solid-state physics, the electron mobility characterises how quickly an electron can move through a metal or semiconductor when pulled by an electric field. There is an analogous quantity for holes, called hole mobility. The term carrier mobility refers in general to both electron and hole mobility. Electron and hole mobility are special cases of electrical mobility of charged particles in a fluid under an applied electric field. When an electric field E is applied across a piece of material, the electrons respond by moving with an average velocity called the drift velocity, .

Field-effect transistor

The field-effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current in a semiconductor. FETs (JFETs or MOSFETs) are devices with three terminals: source, gate, and drain. FETs control the flow of current by the application of a voltage to the gate, which in turn alters the conductivity between the drain and source. FETs are also known as unipolar transistors since they involve single-carrier-type operation.

A transistor is a semiconductor device used to amplify or switch electrical signals and power. It is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal.

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