Results 251 to 260 of about 20,369,220 (302)

Electron work function and electronic affinity of intrinsic semiconductors

Soviet Physics Journal, 1985
By using the simplest dielectric permittivity models, relationships are obtained on the basis of a dielectric formalism, by which the electron work function and electronic affinity of polycrystalline materials—metals, intrinsic semiconductors, and dielectrics—can be estimated.
V. K. Nevolin, V. A. Osadkin, T. D. Shermergor   +2 more
openaire   +1 more source

Dimensional effect of work function of electrons

Nanotechnologies in Russia, 2008
For ultrathin carbon films with controllable graphite nanophase contents, direct experimental evidence is found that the work function of electrons decreases with reduction of characteristic dimensions (thickness). The observed effect is associated with the splitting of the electron states in ultrathin films, as in the 2D quantum well.
V. D. Frolov, S. M. Pimenov, V. I. Konov, E. N. Lubnin   +3 more
openaire   +1 more source

Anisotropy of the Electronic Work Function of Metals

Physical Review, 1941
Work function is experimentally known to be different for different faces of a crystal by amounts ranging from one-tenth to half a volt. For tungsten the faces can be arranged according to decreasing work function as follows: 110, 211, 100 and finally 111.
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Electronic Work Function of Potassium–Cesium Alloys

Russian Journal of Electrochemistry, 2002
The temperature and concentration dependences of the electronic work function (EWF) of K–Cs alloys at thermodynamic equilibrium in an ultrahigh vacuum are studied with a photoelectric method. At 0–20 and 70–100 at. % Cs, the temperature coefficient of EWF depends on the Cs concentration cCs in a complicated fashion: it is positive at small cCs and ...
B. B. Alchagirov, Kh. B. Khokonov, M. A. Yaganov   +2 more
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The work function of an electron gas

Journal of Physics A: General Physics, 1971
An investigation of the temperature variation of the work function of an electron gas is made by collective electron theory methods.
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Electron and positron work functions of cobalt silicide

Surface Science, 1988
Abstract By studying the re-emission of positrons implanted into a clean 250 A epitaxial film of CoSi2 on Si we have determined that the electron and positron work functions at 300 K are 4.62±0.07 and -0.46±0.05 eV respectively. The positron yield extrapolated to zero implantation energy is 0.23±0.01.
E.M. Gullikson, A.P. Mills, Julia M. Phillips   +2 more
openaire   +1 more source

Dependence of Interfacial Adhesion between Substances on Their Electron Work Functions

Langmuir, 2022
In this article, we demonstrate the dependence of the adhesive force (FAd) between two different substances on their electron work functions (EWF or φ) without atomic diffusion involved. The adhesive forces between Si3N4 and a number of metals were measured using an atomic force microscope.
Raymond Christopher Setiawan, Mingyu Wu, D. Y. Li   +2 more
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Low work function electron emitter hexaborides

Journal of Vacuum Science and Technology, 1978
Desirable properties of potential electron emitter materials include a high melting point, low vapor pressure and compound stability at elevated temperatures, in addition to a favorable work function φ and Richardson number. The rare-earth hexaborides combine many of these properties.
P. H. Schmidt, D. C. Joy
openaire   +1 more source

The work function of a 2-dimensional electron gas

Physica B: Condensed Matter, 1994
Abstract A single-parameter model for flat-band heterojunctions is discussed. It is 2DEG-analog of the well studied jellium model of metal surfaces. We use effective potential with an image tail, which arises due to the screening by the free carriers in the 2DEG. The work function Φ 2 DEG of the 2DEG, is calculated (for GaAs Φ 2DEG ≈1.5–2meV.
Groshev, Atanas, Schön, Gerd
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Lithium electron work function: State of the art

Technical Physics, 2015
Main findings on the lithium electron work function in ultrahigh vacuum, including the results of the authors, are reviewed. The data were obtained by the Fowler absolute method on polycrystalline lithium samples with various purity grades. It turns out that published data for the emissivity and work function of the lithium electron are scarce.
B. B. Alchagirov, L. Kh. Afaunova, F. F. Dyshekova, R. Kh. Arkhestov   +3 more
openaire   +1 more source