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photoemission

Overview page. Subjects: Chemistry.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization.

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photoemission

Overview page. Subjects: Chemistry.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization.

See overview in Oxford Index

photoemission

Edited by John Daintith.

in A Dictionary of Chemistry

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Chemistry. 20 words.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization

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photoemission

Edited by Richard Rennie and Jonathan Law.

in A Dictionary of Chemistry

January 2016; p ublished online January 2016 .

Reference Entry. Subjects: Chemistry. 20 words.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization.

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photoemission

Andrew Butterfield and John Szymanski.

in A Dictionary of Electronics and Electrical Engineering

June 2018; p ublished online June 2018 .

Reference Entry. Subjects: Electronic Engineering. 19 words.

Emission of electrons from a material as a result of exposure to electromagnetic radiation. See photoionization; photoelectric effect.

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photoemission

in A Dictionary of Physics

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Physics. 20 words.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization

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photoemission

Edited by Jonathan Law and Richard Rennie.

in A Dictionary of Physics

January 2015; p ublished online September 2015 .

Reference Entry. Subjects: Physics. 20 words.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization

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photoemission

Edited by Richard Rennie and Jonathan Law.

in A Dictionary of Physics

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Physics. 20 words.

The process in which electrons are emitted by a substance as a result of irradiation. See photoelectric effect; photoionization.

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photoemission

Edited by Richard Cammack, Teresa Atwood, Peter Campbell, Howard Parish, Anthony Smith, Frank Vella and John Stirling.

in Oxford Dictionary of Biochemistry and Molecular Biology

January 2006; p ublished online January 2008 .

Reference Entry. Subjects: Biochemistry. 15 words.

the emission of electrons from a surface as a result of bombardment by photons.

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The electronic structure of epitaxial graphene—A view from angle-resolved photoemission spectroscopy

S.Y. Zhou and A. Lanzara.

in Oxford Handbook of Nanoscience and Technology

February 2010; p ublished online July 2017 .

Article. Subjects: Semiconductor and Mesoscopic Physics. 9061 words.

This article analyzes the electronic structure of epitaxial graphene using angle-resolved photoemission spectroscopy (ARPES). It first describes how the carbon atoms in graphene are...

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field-enhanced emission

Andrew Butterfield and John Szymanski.

in A Dictionary of Electronics and Electrical Engineering

June 2018; p ublished online June 2018 .

Reference Entry. Subjects: Electronic Engineering. 25 words.

An increase in *photoemission and *secondary emission in the presence of a strong electric field at the surface of the emitter....

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photoelectric cell

Edited by Richard Rennie and Jonathan Law.

in A Dictionary of Physics

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Physics. 106 words.

Any of several devices that produce an electric signal in response to exposure to electromagnetic radiation. The original photocells utilized photoemission from a photosensitive cathode (...

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photoelectric constant

Andrew Butterfield and John Szymanski.

in A Dictionary of Electronics and Electrical Engineering

June 2018; p ublished online June 2018 .

Reference Entry. Subjects: Electronic Engineering. 32 words.

The ratio of the Planck constant, h, to the electron charge, e. The photoelectric constant can be determined by photoemission experiments and has been used to calculate the Planck...

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photoelectric cell

Overview page. Subjects: Physics.

Any of several devices that produce an electric signal in response to exposure to electromagnetic radiation. The original photocells utilized photoemission from a photosensitive cathode (ph...

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Experimental probes of graphene

E. L. Wolf.

in Graphene

November 2013; p ublished online January 2014 .

Chapter. Subjects: Condensed Matter Physics. 3910 words.

After brief review of important electrical transport measurements, optical and Raman methods, techniques of angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling...

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Ultrafast electron microscopy with relativistic femtosecond electron pulses

Jinfeng Yang, Yoichi Yoshida and Hidehiro Yasuda.

in Microscopy

October 2018; p ublished online July 2018 .

Journal Article. Subjects: Biological Sciences. 3128 words.

Abstract

Ultrafast electron microscopy (UEM) with femtosecond temporal resolution is a ‘dream machine’ that has been long envisioned for the study of ultrafast...

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Iron-based high transition temperature superconductors

Xianhui Chen, Pengcheng Dai, Donglai Feng, Tao Xiang and Fu-Chun Zhang.

in National Science Review

September 2014; p ublished online July 2014 .

Journal Article. Subjects: Medicine and Health; Science and Mathematics. 15336 words.

In a superconductor electrons form pairs and electric transport becomes dissipation-less at low temperatures. Recently discovered iron-based superconductors have the highest superconducting...

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Nonlinear Photoelectric Effects

Guang S. He.

in Nonlinear Optics and Photonics

October 2014; p ublished online December 2014 .

Chapter. Subjects: Atomic, Molecular, and Optical Physics. 9972 words.

Since the advent of the laser technology, it has been found that conventional (linear) photoelectric effects (photoemission and photoconductivity) can be observed by using laser radiation...

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Measuring the Electronic Energy Spectrum On and Off the Fermi Surface

J. B. Ketterson.

in The Physics of Solids

September 2016; p ublished online December 2016 .

Chapter. Subjects: Condensed Matter Physics. 12370 words.

This chapter discusses various methods that have been used to measure the energy spectrum of electrons in both metals and insulators. For metals a property of paramount importance is the...

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iconoscope

Overview page. Subjects: Physics.

A form of television camera tube (see camera) in which the beam of light from the scene is focused on to a thin mica plate. One side of the plate is faced with a thin metallic electrode,...

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Einstein equation

Overview page. Subjects: Chemistry — Physics.

1 The mass-energy relationship announced by Albert Einstein in 1905 in the form E = mc 2, where E is a quantity of energy, m its mass, and c is the speed of light. It presents...

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