Time filter

Source Type

Styrov V.V.,Berdyansk State Pedagogical University
Technical Physics Letters | Year: 2015

Nonthermal (nonequilibrium) generation of hot electrons (electron-hole pairs) in palladium has been observed due to the chemical energy transfer to electrons in the metal during the exothermal reaction of hydrogen peroxide decomposition at the aqueous H2O2 solution-palladium interface. The yield of electronhole pairs (per decomposed peroxide molecule) in the metal has been determined. © 2015, Pleiades Publishing, Ltd.

Styrov V.V.,Berdyansk State Pedagogical University | Simchenko S.V.,Mariupol State University
Journal of Surface Investigation | Year: 2012

The internal emission of hot electrons from a metal (Pd) surface is studied. The electrons gain energy from chemical atomic collisions with the thermal energy hydrogen atoms or with H2 + O2 molecules. A Pd(15 nm)/n-Si(111) nano-Schottky diode is used as a detector of hot electrons in which chemicurrents (and chemo-emf) are generated. The efficiency of entering of chemo-electrons into the external circuit per act of interaction (or per product molecule) is determined. © 2012 Pleiades Publishing, Ltd.

Suchikova J.A.,Berdyansk State Pedagogical University
Journal of Nano- and Electronic Physics | Year: 2015

The paper presents a technique to obtain InN films on porous InP substrates by radical-beam gettering epitaxy. According to the results of the Auger spectroscopy, InN film thickness ranged from 100 nm to 0.5 microns depending on the etching conditions. © 2015 Sumy State University.

Grankin D.V.,Pryazovskyi State Technical University | Grankin V.P.,Pryazovskyi State Technical University | Styrov V.V.,Berdyansk State Pedagogical University | Sushchikh M.,University of California at Santa Barbara
Chemical Physics Letters | Year: 2016

The surface chemiluminescence of Zn2SiO4-Mn phosphor (λmax = 525 nm) has been studied under excitation by exoergic interaction of H-atoms with its surface. We have found that the pre-irradiation of the Zn2SiO4-Mn by UV light results in the transient increase in the luminescence intensity by two orders of magnitude. On the other hand, deposition of Pd-nanoparticles on the surface leads to luminescence quenching. These two effects are associated with the energy accommodation in the gas-surface interaction via electronic channel by the filled electron traps of the insulating phosphor or by metallic electrons of the Pd-nanoparticles. © 2016 Elsevier B.V. All rights reserved.

Styrov V.V.,Berdyansk State Pedagogical University | Simchenko S.V.,Berdyansk State Pedagogical University
Journal of Surface Investigation | Year: 2015

The effects of excitation of the transverse chemovoltage (chemo-emf) and nonequilibrium chemoconductivity in a CdTe film obtained by the “oblique deposition” method upon its interaction with atomic hydrogen are studied. Both effects are related to the nonthermal generation of electron-hole pairs in the semiconductor film caused by the energy released in chemical events of interaction between H atoms and the CdTe surface (the adsorption of atoms and formation of H2 molecules). The chemovoltage and chemoconductivity kinetics and the dependence of the steady-state values of the effects on the atomic-flux density and sample temperature are studied. It is established that the events of both H-atom adsorption and their recombination participate in the process of (e−h) pair generation. Analytical expressions for the chemovoltage and chemoconductivity are obtained. The numerical values of the parameters of interaction between H atoms and the CdTe surface and the effectiveness of (e−h) pair generation are estimated. © 2015, Pleiades Publishing, Ltd.

Discover hidden collaborations