72 citations · 106 across the 7 of their papers we have counts for
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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…
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…
Inhomogeneous Broadening of the Exciton Band in Optical Absorption Spectra of InP/ZnS Nanocrystals
Sergey S. Savchenko, Ilya A. Weinstein
In this work, we have simulated the processes of broadening the first exciton band in optical absorption spectra (OA) for InP/ZnS ensembles of colloidal quantum dots (QDs). A pheno…