D L Gazdinsky

North-Caucasus Federal University

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ЕА

Е. А. Бондаренко

National Research Tomsk State University

ОC

О.М. Chapura

North-Caucasus Federal University

L. V. Mikhnev

North-Caucasus Federal University

A. A. Zakharov

Yuri Gagarin State Technical University of Saratov

АА

Антон А. Скоморохов

North-Caucasus Federal University

U. A. Maryina

R. V. Pigulev

North-Caucasus Federal University

Evgenii A Bondarenko

Saint-Petersburg Humanitarian University of Trade Unions

V. V. Ovsyannikov

Far Eastern Federal University

Alexander Ivanovich Nikonov

Samara State Technical University

Cooperative Institutions

North-Caucasus Federal University

Yuri Gagarin State Technical University of Saratov

Lomonosov Moscow State University

Kazan State Technological University

All-Russian Research Institute of Chemical Technology

All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements

National Research Tomsk State University

Tomsk Polytechnic University

National Academy of Sciences of Belarus

Karpov Institute of Physical Chemistry

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STUDY OF THE OPTICAL PROPERTIES OF THIN LAYERS OF ZINC OXIDE ZnO OBTAINED BY THE SOL-GEL METHOD

Izvestiâ ÛFU. Tehničeskie nauki (2022)

U. A. Maryina D L Gazdinsky O. M. Chapura L. V. Mikhnev Evgenii A Bondarenko

Currently, the actual direction is the search for functional layers for various optoelectronicdevices. A promising candidate as a basis for many such structures is zinc oxide (ZnO), whichcombines a number of unique optical and photoelectric properties. However, the characteristics ofZnO thin films can vary significantly depending on the chosen synthesis method and specific productionconditions. One of the varieties of the sol-gel method suitable for the synthesis ofnanoscale films is the dip-coating method. The paper presents the results of the synthesis of thinfilms of zinc oxide on glass substrates by the method of vertical drawing from ZnO alcohol sol.The effect of the elongation rate on the structural and optical properties of synthesized ZnO filmswas studied using spectral ellipsometry and spectral photometry. By the method of spectralellipsometry, it was found that the change in the rate of elongation significantly affects the thicknessand porosity of the synthesized zinc oxide layers. The analysis of the obtained dependence ofthe film thickness on the pulling speed showed that in the vertical pulling method, the growth ofzinc oxide on glass substrates can be realized in two modes: in capillary forces mode and in dryingmode. At the same time, transmission spectra were measured for synthesized ZnO films byspectral photometry, the analysis of which showed the effect of the elongation rate on the positionof the edge of fundamental absorption. It was found that the main cause of the resulting.

Elongation

Ellipsometry

Photoelectric effect

Absorption edge

10.18522/2311-3103-2022-2-136-144

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Study into luminescence and photoconductivity of nano-structured ZnO obtained through sol-gel method

IOP Conference Series Materials Science and Engineering (2019)

L. V. Mikhnev Е. А. Бондаренко О.М. Chapura Антон А. Скоморохов Alexander Ivanovich Nikonov

Abstract Sol-gel method from zinc acetate in water was employed to synthesize nano-sized zinc oxide. The structural features of the ZnO obtained samples, their spectral features of luminescence and photoconductivity were studied. The influence of the treatment temperature on the luminescence and photoconductivity of nano-sized zinc oxide was studied. The type and energy position of the intrinsic defects involved in the luminescence and photoconductivity processes were determined.

Photoconductivity

10.1088/1757-899x/597/1/012051

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Influence of scandium on luminescence YSAG:Yb³⁺

Journal of Physics Conference Series (2021)

D M Revenko О.М. Chapura Е. А. Бондаренко L. V. Mikhnev D L Gazdinsky

Abstract In this work, the effects of scandium introduction on the luminescence of yttrium scandium (Sc) aluminium garnet powders doped with ytterbium (YSAG: Yb 3+ ) were investigated. Based on photoluminescence (PL) and photoluminescence excitation (PLE) spectra we made conclusions about the influence of scandium concentration and location on emission properties of ytterbium ions in YSAG. On the one hand, an analysis of the data showed that the increase of Sc concentration leads to broadening spectral lines regardless of a location of scandium ions in the crystal structure. On the other hand, the photoluminescence intensity of ytterbium ions in YSAG is more sensitive to scandium in the octahedral site than to scandium in the dodecahedral site.

Scandium

Ytterbium

Photoluminescence excitation

10.1088/1742-6596/1989/1/012017

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Citations (4)