Results 41 to 50 of about 1,913,601 (192)

Optoelectronic properties of electron beam-deposited NiOx thin films for solar cell application

open access: yesResults in Physics, 2020
The fabrication of highly efficient nickel oxide (NiOx) thin film for optoelectronic devices is a challenging task because optoelectronic properties are considerably influenced by deposition technique and film thickness.
A.K. Mahmud Hasan   +11 more
doaj   +1 more source

Effect of Vane Thermal Emission Cooling on the Efficiency of the Gas Turbine Power Plant [PDF]

open access: yesProblems of the Regional Energetics, 2020
The work is devoted to the problem of increasing efficiency of power gas turbine units (microturbines). One of ways to improve efficiency is to increase gas temperature in front of the turbine. Cooling of gas turbine elements is difficult.
Kolychev A.V.   +3 more
doaj   +1 more source

Observation of new quantum interference effect in solids

open access: yes, 2006
In order to achieve quantum interference of free electrons inside a solid, we have modified the geometry of the solid so that de Broglie waves interfere destructively inside the solid.
Alex Shimkunas   +12 more
core   +1 more source

Intermediate phase of the one dimensional half-filled Hubbard-Holstein model [PDF]

open access: yes, 2005
We present a detailed numerical study of the Hubbard-Holstein model in one dimension at half filling, including full finite-frequency quantum phonons. At half filling, the effects of the electron-phonon and electron-electron interactions compete, with ...
R. P. Hardikar, R. T. Clay, T. Ishiguro
core   +3 more sources

Electron Work Function of Refractory Metal Alloys

open access: yesIzvestiya MGTU MAMI, 2009
The article considers experimental investigation of influence of tungsten alloying by transitive metals of IV A - VI A groups on its thermoemission properties. It is established that at temperatures of test 1500 and 2400 С almost monotonous reduction of electron work function of pure tungsten is observed after additing of the given alloying elements ...
V B Arzamasov   +4 more
openaire   +1 more source

Relationship between electron work function and crystal lattice constant [PDF]

open access: yes2017 IEEE First Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2017
The paper presents a model of one-dimensional finite crystal. The calculation of the field of forces acting on an electron in a crystal was done. The relationship between the electron work function and the lattice constant was obtained. Show matching between theoretical values of work function and practical data.
Korolevych, Lyubomyr Mykolayovych   +2 more
openaire   +2 more sources

INFLUENCE OF MACHINING ON QUALITY PARAMETERS OF OPTICAL METAL PRODUCTS [PDF]

open access: yesFiabilitate şi Durabilitate, 2017
The article gives recommendations about the technological support of the given optical characteristics of metal products. The main task at providing light reflectance of surfaces is smoothing of roughnesses on a surface and providing surface ...
Valentin SHKURUPY
doaj  

An electron-induced secondary electron model for photoelectric sensitivity and quantum efficiency of metal surfaces

open access: yesResults in Physics, 2021
This paper studies an electron-induced secondary electron model ESEM for photoelectric sensitivity PS and quantum efficiency QE of metal surfaces near threshold frequency γ0, which was developed from Sommerfeld’s theory and the theories of transport and ...
Ai-Gen Xie, Hong-Jie Dong, Zheng Pan
doaj   +1 more source

Kelvin Probe Studies of Cesium Telluride Photocathode for AWA Photoinjector

open access: yes, 2012
Cesium telluride is an important photocathode as an electron source for particle accelerators. It has a relatively high quantum efficiency (>1%), is sufficiently robust in a photoinjector, and has a long lifetime.
Daniel Velazquez   +21 more
core   +1 more source

ELECTRON WORK FUNCTION AND PHYSICAL-CHEMICAL PROPERTIES OF SURFACES LAYERS OF ION-DOPED HARD ALLOY BК6

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
The correlation between structural-phase transformations and physical-chemical properties of surface layers of hard alloy after ion-beam nitriding (temperature range 670–870 K) was established.
A. V. Byeli   +3 more
doaj  

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