72 citations · 148 across the 14 of their papers we have counts for
14 papers
Temperature behavior of optical absorption spectra in HfO2 thin films
A. O. Shilov, S. S. Savchenko, A. S. Vokhmintsev +2
Hafnium dioxide, also known as hafnia, is an extremely sought-after material in opto- and nanoelectronics for creating optical coatings and various functional media to have stable…
Mechanisms of Afterglow and Thermally Stimulated Luminescence in UV-irradiated InP/ZnS Quantum Dots
S. S. Savchenko, A. O. Shilov, A. S. Vokhmintsev +1
Indium phosphide-based quantum dots (QDs) are a potential material for designing optoelectronic devices, owing their adjustable spectral parameters over the entire visible range, a…
Luminescence in anion-deficient hafnia nanotubes
A. O. Shilov, R. V. Kamalov, M. S. Karabanalov +6
Hafnia-based nanostructures and other high-k dielectrics are promising wide-gap materials for developing new opto- and nanoelectronics devices. They possess a unique combination of…
Temperature behavior of the Optical Absorption and Photoluminescence Spectra of InP/ZnS Nanocrystals with a Stabilizing Polyvinylpyrrolidone-based Coating
S. S. Savchenko, A. S. Vokhmintsev, M. S. Karabanalov +2
The present paper deals with the results of a research work on the optical properties of colloidal InP/ZnS nanocrystals stabilized with a heterobifunctional polyvinylpyrrolidone po…
Thermally stimulated luminescence of oxygen-deficient zirconia nanotubes
A. S. Vokhmintsev, I. A. Petrenyov, R. V. Kamalov +2
ZrO nanotubular arrays with intrinsic defects are a promising solid-state basis for the development of devices for detecting, storing, and converting energy. Layers of the self…
Temperature dependence of self-trapped exciton luminescence in nanostructured hafnia powder
A. O. Shilov, S. S. Savchenko, A. S. Vokhmintsev +2
The intrinsic optical properties and peculiarities of the energy structure of hafnium dioxide largely determine the prospects for applying the latter in new generation devices of o…
Activation energy distribution in thermal quenching of exciton and defect-related photoluminescence of InP/ZnS quantum dots
S. S. Savchenko, A. S. Vokhmintsev, I. A. Weinstein
Thermal quenching is one of the essential factors in reducing the efficiency of radiative processes in luminophores of various nature. The emission activity of low dimensional stru…
Study of spectrally resolved thermoluminescence in Tsarev and Chelyabinsk chondrites with a versatile high-sensitive setup
Alexander Vokhmintsev, Ahmed Henaish, Taher Sharshar +2
Thermoluminescence (TL) research provides a powerful tool for characterizing radiation-induced processes in extraterrestrial matter. One of the challenges in studying the spectral…
Quantum Conductors Formation and Resistive Switching Memory Effects in Zirconia Nanotubes
A. S. Vokhmintsev, I. A. Petrenyov, R. V. Kamalov +1
The development prospects of memristive elements for non-volatile memory with use of the metal-dielectric-metal sandwich structures with a thin oxide layer are due to the possibili…
Spectral characterization of long-lived luminescence in h-BN nanopowder under UV excitation
I. A. Weinstein, D. M. Spiridonov, A. S. Vokhmintsev +1
Photoluminescence (PL) features of nanostructured h-BN powder are studied in the range of 200-600 nm in millisecond time window. It is found that four PL excitation bands of 4.58,…
Temperature effects in luminescence of associated oxygen-carbon pairs in hexagonal boron nitride under direct optical excitation within 7-1100 K range
A. S. Vokhmintsev, I. A. Weinstein
We have studied the temperature dependencies of the photoluminescence (PL) intensity of 4.1 eV in microcrystalline powder of hexagonal boron nitride in the range of 7-1100 K. The r…
Oxide layer thickness effects on the resistance switching characteristics of Ti/TiO2-NT/Au structure
I. B. Dorosheva, A. S. Vokhmintsev, R. V. Kamalov +2
Self-ordered nanotubular titania TiO2-NT with outer tube diameter of 45 nm are synthesized using the anodic oxidation of titanium foil. Four sets of memristors with 100 diamet…
Unidirectional Synapse-Like Behavior of Zr/ZrO2-NT/Au Layered Structure
A. S. Vokhmintsev, R. V. Kamalov, A. V. Kozhevina +3
Zirconia nanotubular layer with an outer tube diameter 25 nm was synthesized by potentiostatic anodization. The Zr/ZrO2-NT/Au memristive structure is fabricated using stencil mask…
Nonstoichiometric titanium dioxide nanotubes with enhanced catalytical activity under visible light
A. A. Valeeva, E. A. Kozlova, A. S. Vokhmintsev +5
The catalytic activity of nanotubular titanium dioxide films formed during the oxidation of acetone to carbon dioxide under the action of visible light with a wavelength of 450 nm…