Surface energy and electron work function at the interface of a thin alkali metal alloy film and a dielectric medium

2003 ◽  
Vol 29 (1) ◽  
pp. 69-71 ◽  
Author(s):  
V. A. Sozaev ◽  
R. A. Chernyshova
Keyword(s):  
Surface Energy ◽  
Alkali Metal ◽  
Work Function ◽  
Electron Work Function ◽  
Alloy Film ◽  
Dielectric Medium ◽  
Metal Alloy

The effect of an electric field on the surface energy and electron work function of thin films of alkali metal alloys

2002 ◽  
Vol 28 (6) ◽  
pp. 515-516 ◽  
Author(s):  
V. Z. Kanchukoev ◽  
A. Z. Kashezhev ◽  
A. Kh. Mambetov ◽  
V. A. Sozaev
Keyword(s):  
Thin Films ◽  
Surface Energy ◽  
Alkali Metal ◽  
Electric Field ◽  
Work Function ◽  
Electron Work Function ◽  
Metal Alloys

Crystallographic anisotropy in surface properties of brass and its dependence on the electron work function

2018 ◽  
Vol 51 (6) ◽  
pp. 1715-1720 ◽  
Author(s):  
Liqiu Guo ◽  
Hao Lu ◽  
D. Y. Li ◽  
Q. X. Huang ◽  
Xu Wang ◽  
...  
Keyword(s):  
Surface Energy ◽  
Work Function ◽  
Surface Properties ◽  
Electron Work Function ◽  
Adhesive Force ◽  
Surface Electron ◽  
Crystallographic Anisotropy ◽  
Atomic Force ◽  
Work Functions ◽  
Crystallographic Planes

The crystallographic anisotropy of the electric current or conductance, adhesive force, elastic modulus, and deformation magnitude of alpha brass were investigated through property mapping using an atomic force microscope. Surface electron work functions of differently oriented grains in the brass were also analyzed using atomic force microscopy. The mapped surface properties are closely related to the electron work function; the work function reflects the surface activity, which is itself dependent on the surface energy. The anisotropy of the properties is closely correlated to the in situ measured surface electron work function. It is demonstrated that crystallographic planes with higher electron work functions exhibit lower current, smaller adhesive forces, larger elastic moduli and smaller deformation magnitudes. Efforts are made to understand the relationships by connecting the properties with surface energy and electron work function. The dependence of the properties on crystallographic orientation can be elucidated by considering the surface electron behavior using electron work function as a novel probing parameter.

Electron work function of aluminum nanowire at the interface with a dielectric medium

2009 ◽  
Vol 73 (7) ◽  
pp. 982-984 ◽  
Author(s):  
P. K. Korotkov ◽  
V. A. Sozaev ◽  
R. B. Tchakachov ◽  
Z. A. Uianaeva
Keyword(s):  
Work Function ◽  
Electron Work Function ◽  
Dielectric Medium

scholarly journals ANISOTROPY OF THE SURFACE OF CUBIC BODY-CENTERED CRYSTAL LATTICES

2021 ◽  
Vol 18 (1) ◽  
pp. 9-15
Author(s):  
V.M. Yurov ◽  
Keyword(s):  
Surface Layer ◽  
Surface Energy ◽  
Work Function ◽  
Single Crystals ◽  
Theoretical Calculations ◽  
Experimental Studies ◽  
Electron Work Function ◽  
Fundamental Parameter ◽  
Statistical Calculation ◽  
Crystal Lattices

In the work of Shebzukhova and Arefieva, by the method of electronic-statistical calculation of the anisotropy of the surface energy of metals, a method for estimating the work function of electrons from a metal was determined. The surface energy and electron work function of four main faces of cadmium and zinc crystals and five faces of mercury are estimated. In the work of Bokarev, the anisotropy of the surface energy of single crystals was calculated from the model of coordination melting of crystals. Based on experimental studies and theoretical calculations, it is shown that the model of coordination melting of crystals unambiguously links the physicochemical properties of the surface of single crystals with their crystal structure. In our proposed empirical model, not only the anisotropy is calculated, but also the thickness of the surface layer of the metal. It is shown that the thickness of the surface layer is determined by one fundamental parameter - the molar (atomic) volume, which periodically changes in accordance with the table of D.I. Mendeleev. It is shown in the work that the work function of electrons changes proportionally with a change in the surface energy of the metal. This means that the device we have developed can be used to measure the state of the metal surface and its anisotropy.

scholarly journals Анизотропия поверхностной энергии и работы выхода электрона IIВ металлов

2019 ◽  
Vol 89 (2) ◽  
pp. 306
Author(s):  
И.Г. Шебзухова ◽  
Л.П. Арефьева
Keyword(s):  
Experimental Data ◽  
Surface Energy ◽  
Work Function ◽  
Statistical Method ◽  
Electron Work Function ◽  
Method Of Calculation ◽  
Cadmium Zinc ◽  
Good Agreement

AbstractOn the basis of electron-statistical method of calculation of the surface energy of metals, a technique for estimating the electron work function of hexagonal and rhombohedral metallic crystals has been developed. This technique relates surface energy to work function and can thus be applied to estimate the surface energy of crystal faces from experimental data for a work function. Computations have been made for cadmium, zinc, and mercury macrocrystals. The temperature and orientation dependences of both quantities have been constructed. Our results are in good agreement with literature experimental data.

scholarly journals CALCULATION OF THE SURFACE PROPERTIES OF MICROELECTRONICS MATERIALS USING THE MODEL OF COORDINATION MELTING OF A CRYSTAL

2021 ◽  
Author(s):  
Valeriy Bokarev ◽  
Gennady Krasnikov
Keyword(s):  
Crystal Structure ◽  
Surface Energy ◽  
Specific Surface ◽  
Work Function ◽  
Melting Temperature ◽  
Surface Properties ◽  
Electron Work Function ◽  
Specific Surface Energy ◽  
Crystal Melting ◽  
Adhesion Work

In this work, it is shown that the model of coordination crystal melting makes it possible to calculate the values of the specific surface energy of elementary substances and the surface melting temperature of metals, and also relates the anisotropy of the specific surface energy of a crystal with its crystal structure, electron work function, and adhesion work.

scholarly journals Effect of the sample work function on alkali metal dosing induced electronic structure change

2021 ◽  
pp. 147045
Author(s):  
Saegyeol Jung ◽  
Yukiaki Ishida ◽  
Minsoo Kim ◽  
Masamichi Nakajima ◽  
Shigeyuki Ishida ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Alkali Metal ◽  
Work Function ◽  
Structure Change

scholarly journals Alkali metal doping of black phosphorus monolayer for ultrasensitive capture and detection of nitrogen dioxide

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Azam Marjani ◽  
Mehdi Ghambarian ◽  
Mohammad Ghashghaee
Keyword(s):  
Alkali Metal ◽  
Nitrogen Dioxide ◽  
Work Function ◽  
Black Phosphorus ◽  
Research Interest ◽  
Metal Doping ◽  
Li Doping ◽  
Rational Development ◽  
Parallel Configuration ◽  
First Time

AbstractBlack phosphorus nanostructures have recently sparked substantial research interest for the rational development of novel chemosensors and nanodevices. For the first time, the influence of alkali metal doping of black phosphorus monolayer (BP) on its capabilities for nitrogen dioxide (NO2) capture and monitoring is discussed. Four different nanostructures including BP, Li-BP, Na-BP, and K-BP were evaluated; it was found that the adsorption configuration on Li-BP was different from others such that the NO2 molecule preferred a vertical stabilization rather than a parallel configuration with respect to the surface. The efficiency for the detection increased in the sequence of Na-BP < BP < K-BP < Li-BP, with the most significant improvement of + 95.2% in the case of Li doping. The Na-BP demonstrated the most compelling capacity (54 times higher than BP) for NO2 capture and catalysis (− 24.36 kcal/mol at HSE06/TZVP). Furthermore, the K-doped device was appropriate for both nitrogen dioxide adsorption and sensing while also providing the highest work function sensitivity (55.4%), which was much higher than that of BP (10.4%).

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