70 Result(s)

Article

Spontaneous activity of hair cells of the snail statocyst and its changes during intracellular stimulation

The following conclusions were drawn from an electrophysiological study of statocyst hair cell activity inHelix lucorum using intracellular recording. The maximal input resistance of the receptors is observed wit...

O. V. Ovchinnikov in Neurophysiology (1985)

Article

Absorption Spectra of Metal Atoms Adsorbed on the Surface of a Single Crystal

A method for obtaining the spectra of atoms adsorbed on a single crystal with an ion-covalent bond is suggested. A photostimulated burst of luminescence is used to record the spectra. The atoms are deposited i...

A. N. Latyshev, O. V. Ovchinnikov, S. S. Okhotnikov in Journal of Applied Spectroscopy (2003)

Article

Mechanism of Crystal Phosphor Luminescence

An experimental method has been developed for determining the mechanism of luminescence of crystals by the changes arising in the intensity of a burst of their luminescence under the action of a constant elect...

A. N. Latyshev, O. V. Ovchinnikov, M. S. Smirnov in Journal of Applied Spectroscopy (2004)

Article

A Microwave Photoconductivity and Photostimulated Flash Luminescence Study of Silver Chloride Photolysis

The combined effect of chemical surface treatment (HCl, AgNO₃) and preliminary UV irradiation on the properties of electron trap** sites and luminescence sites in silver chloride grains was studied using the mi...

E. P. Tat'yanina, A. N. Latyshev, G. F. Novikov, O. V. Ovchinnikov… in High Energy Chemistry (2004)

Article

A Method for Determining the Ionization Spectra of Monodispersed Clusters of Noble Metals Adsorbed on the Surfaces of Ionic–Covalent Crystals

The method described is based on the vacuum deposition of separate monodispersed molecular metal ions from a mass-separated beam on the surfaces of ionic–covalent crystals and the detection of ultralow concent...

A. N. Latyshev, O. V. Ovchinnikov… in Instruments and Experimental Techniques (2004)

Article

Mechanism Underlying the Recombination of Nonequilibrium Charge Carriers Localized at Deep Traps in Silver Chloride

A procedure for investigating the mechanism of decrease in the population of deep local states on excitation of a crystal with light has been developed. It is based on studying the action of an electric field ...

A. N. Latyshev, O. V. Ovchinnikov, M. S. Smirnov… in Journal of Applied Spectroscopy (2005)

Article

Anti-stokes luminescence of solid AgCl_0.95I_0.05 solutions

An anti-Stokes luminescence band with λ_max = 515 nm of microcrystals of solid AgCl_0.95I_0.05 solutions excited by a radiation flux of density 10¹³–10¹⁵ quanta/cm²·sec in the range 600–800 nm at 77 K was detected. ...

O. V. Ovchinnikov, A. B. Evlev, M. A. Efimova… in Journal of Applied Spectroscopy (2005)

Article

Mechanism of the Photonic Activation of Solid-Phase Processes

Based on experimental studies of solid-phase processes with photonic activation, a hypersonic mechanism was proposed for local excitation decay in crystals. This mechanism can occur in photocatalytic and cavit...

V. M. Ievlev, A. N. Latyshev, Yu. K. Kovneristyi, T. L. Turaeva… in High Energy Chemistry (2005)

Article

Photoionization spectra of silver atoms adsorbed on the surface of a ZnS single crystal

We have used photostimulated flash luminescence to study deep electronic states arising when silver ions Ag⁺ are deposited under high vacuum onto the surface of a ZnS single crystal, followed by creation of the c...

A. N. Latyshev, O. V. Ovchinnikov, D. A. Minakov… in Journal of Applied Spectroscopy (2006)

Article

Photostimulated formation of anti-stokes luminescence centers in ionic covalent crystals

V. M. Ievlev, A. N. Latyshev, O. V. Ovchinnikov, M. S. Smirnov… in Doklady Physics (2006)

Article

Anti-Stokes luminescence of microcrystals of AgCl_0.95I_0.05 solid solutions with adsorbed organic dye molecules

We have studied the effect of the characteristic features of aggregation of some organic dye molecules during adsorption on the parameters of low-temperature sensitized anti-Stokes luminescence (SASL) in micro...

O. V. Ovchinnikov, R. P. Vorob’eva, A. B. Evlev… in Journal of Applied Spectroscopy (2006)

Article

Photoionization spectra of silver dimers adsorbed on the surface of a ZnS single crystal

We use the photostimulated luminescence flash method to measure photoionization spectra of Ag₂ clusters adsorbed on the surface of a ZnS single crystal. Adsorbed dimers of silver are prepared by treatment of the ...

O. V. Ovchinnikov, D. A. Minakov, M. S. Smirnov… in Journal of Applied Spectroscopy (2007)

Article

Anti-stokes luminescence of Zn_0.6Cd_0.4S solid solutions with adsorbed organic dye molecules and few-atom silver clusters

For microcrystals of Zn_0.6Cd_0.4S with adsorbed molecules of a number of organic dyes, we have observed sensitized anti-Stokes luminescence excited by radiation with wavelengths in the range 610–750 nm and flux de...

O. V. Ovchinnikov, E. A. Kosyakova, M. S. Smirnov… in Journal of Applied Spectroscopy (2007)

Article

Photostimulated formation of sensitized anti-Stokes luminescence centers in AgCl(I) microcrystals

The low-temperature photostimulated activation of sensitized anti-Stokes luminescence in heterogeneous systems based on AgCl(I) microcrystals with adsorbed organic dye molecules and their aggregates is investi...

O. V. Ovchinnikov, M. S. Smirnov, A. N. Latyshev… in Optics and Spectroscopy (2007)

Article

Analysis of interaction between the organic dye methylene blue and the surface of AgCl(I) microcrystals

We have used IR spectroscopy to study the nature of interaction between molecules of the organic dye methylene blue (MB) and the surface of AgCl(I) microcrystals. We recorded the IR absorption spectra of the o...

O. V. Ovchinnikov, S. V. Chernykh, M. S. Smirnov… in Journal of Applied Spectroscopy (2007)

Article

Sensitized anti-Stokes luminescence centers in microcrystals of Zn_0.6Cd_0.4S solid solutions with adsorbed dye molecules and few-atomic silver clusters

The sensitized anti-Stokes luminescence excited by radiation with wavelengths from 610 to 750 nm and flux densities of 10¹⁴–10¹⁵ quanta/(cm²·s) is detected for microcrystals of Zn _0.6 ...

O. V. Ovchinnikov, E. A. Kosyakova, L. Yu. Leonova… in Russian Physics Journal (2008)

Article

Spongy titanium alloyed with oxygen for the production of titanium alloys

We study the influence of alloying of spongy titanium with oxygen on the structure, mechanisms of fracture, and mechanical properties of titanium. It is shown that, within the range of concentrations 0.05–0.30...

O. V. Ovchinnikov, V. H. Shevchenko, I. P. Volchok in Materials Science (2008)

Article

Photostimulated formation of small atomic silver clusters of a specified size on the surface of silver chloride and zinc sulfide single crystals

A. N. Latyshev, O. V. Ovchinnikov, D. A. Minakov, M. S. Smirnov… in High Energy Chemistry (2008)

Article

Anti-stokes luminescence of Zn_0.75Cd_0.25S microcrystals annealed in the presence of oxygen

The nature of anti-Stokes luminescence centers excited in the temperature range 77–300 K by light with wavelengths from 620 to 710 nm and intensities in the range 10¹⁵–10¹⁶ photons/cm² in Zn_0.75Cd_0.25S microcryst...

O. V. Ovchinnikov, M. S. Smirnov, E. A. Kosyakova, A. N. Latyshev… in Semiconductors (2009)

Article

Sensitized anti-stokes luminescence centers in AgCl crystals

In the AgCl microcrystals with adsorbed methylene blue dye molecules, sensitized anti-Stokes luminescence centers formed as a result of a photostimulated low-temperature (77 K) process are observed. The emissi...

M. S. Smirnov, O. V. Ovchinnikov, A. N. Latyshev, A. M. Smirnova… in Semiconductors (2009)