Ion-Track Template Synthesis and Characterization of ZnSeO3 Nanocrystals

Dauletbekova, А.; Akylbekovа, Aiman; Sarsekhan, Gulnaz; Usseinov, А.; Baimukhanov, Zein; Kozlovskiy, Artem L.; Власукова, Л. А.; Komarov, F. F.; Попов, А. И.; Аkilbekov, A.

doi:10.3390/cryst12060817

Cited by 16 publications

(7 citation statements)

References 74 publications

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“…The matrix synthesis was performed according to the method of templating synthesis with the use of two kinds of electrolytes. Synthesis methods are described in [9][10][11], where synthesis modes are described in detail. In our case, new complex crystals based on zinc selenide (ternary compounds) on zinc electrodes at voltages from 1 to 2 V were produced by template-based synthesis.…”

Section: Methodsmentioning

confidence: 99%

Formation of zinc selenite nanostructures in SiO2/Si track templates with the use of two kinds of electrolytes

Akylbekova,

Sarsekhan,

Baimukhanov

et al. 2023

physast

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This paper presents studies of zinc selenite nanocrystals obtained by chemical and electrochemical deposition of zinc in a silicon dioxide track template. With the use of two kinds of electrolytes, zinc selenite nanocrystals were prepared by template synthesis and their morphological, structural and photoluminescent properties were investigated. The electrochemical deposition method was shown to be more optimal to create this crystal in comparison to the chemical deposition method. The cell parameters created by us match up with the results of other authors. Photoluminescence spectra were recorded in the spectrum interval from 2 to 4 eV at room temperature at an excitation wavelength of ~ 4 eV.

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Section: Methodsmentioning

confidence: 99%

Formation of zinc selenite nanostructures in SiO2/Si track templates with the use of two kinds of electrolytes

Akylbekova,

Sarsekhan,

Baimukhanov

et al. 2023

physast

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“…Оптоэлектроника, наноэлектроника және сенсорлар үшін жаңа перспективалық материалдарды алу тұрғысынан басқа күрделі мырыш негізіндегі оксидтерге негізделген наноматериалдарды, атап айтқанда SiO2/Si шаблонында алынған ZnSeO3 нанокристалдарын егжей-тегжейлі зерттеу де сөзсіз қызығушылық тудырады [12].…”

Section: кіріспеunclassified

“…Мырыш селениді мен селенитінің нанокристалдары бөлме температурасында темплейт синтезі әдісімен синтезделіп, зерттелді. [12,14] еңбектерінде зерттелетін үлгілердің синтез режимдері мен тұндыру әдісі егжей-тегжейлі сипатталған.…”

Section: кіріспеunclassified

Raman Analysis of Nanocrystals Based on Zinc Selenide

Akylbekova,

Sarsekhan,

Dauletbekova

et al. 2024

jour

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This paper presents the results that were synthesized by nanocrystals based on zinc selenide by thermal synthesis and studied using micro-Raman spectroscopy before and after thermal annealing at 800 ℃ and 1000 ℃. The heat treatment of the synthesized samples was carried out in the AVERON electric vacuum furnace, lasting 60 minutes. The optical properties of the samples – photoluminescence (PL) and raman spectra – have been studied. Photoluminescence spectra were measured at room temperature using a CM2203 spectrofluorimeter. Raman spectra were measured using a Raman spectrometer (NT-MDT). The spectrometer used a solid-state laser with a wavelength of 473 nm. Raman spectra of zinc selenite (ZnSeO3) nanocrystals before annealing showed modes 665, 695, 825 and 973 cm−1. After thermal annealing, a downward shift of peaks was observed. In addition, the Raman spectra showed LO shifts with the duration of the deposition time. The Raman spectra of zinc selenide at room temperature showed the main peaks at 199, 247, 498 and 501 cm−1. During heat treatment of ZnSe at 800 °C and 1000 °C, an expansion of asymmetry was observed for horizontal optical (TO)-phonon and longitudinal optical (LO)-phonon modes with an increase in annealing temperature and redshifts in the shapes of Raman lines. The photoluminescence spectra of zinc selenide, depending on temperature, were represented by wide bands located at wavelengths of 350–650 nm. The PL spectra were recorded at room temperature from 300 to 800 nm in 5 nm increments using a xenon lamp. Zinc selenide before heat treatment showed photoluminescence bands at 1.93, 2.3, 2.56, 2.75 and 2.97 eV. The volume radiation of ZnSe at the boundary of the nearest band corresponded to the band of strong radiation at 2.84 eV. 3.2 eV is associated with the absorption of ZnO nanoparticles through the edge of the band. ZnSeO3 samples before annealing show one wide band of photoluminescence in the blue region of the electromagnetic spectrum about 2.82 eV. After thermal annealing at 1000 °C, a transition to a longer wave region with a wavelength of 2.86 eV is observed. Since thermal annealing is suitable for crystallization, it has led to an increase in luminescent efficiency. 60 minutes of high-temperature firing of the samples resulted in a loss of Se due to the effect of temperature on the zinc selenide content. Thermal combustion of zinc selenide-based nanocrystals was characterized by an increase in FWHM and a decrease in intensity in the photoluminescence spectra with increasing temperature.

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“…An attractive aspect of template synthesis [ 23 ] is the ability to tailor a nanomaterial’s physical, chemical, and electronic properties through controlled manipulation of morphology, pore density, shape, and size. Our works demonstrate successful template synthesis of ZnO [ 23 ], CdTe [ 24 ], and ZnSe 2 O 5 [ 25 ], resulting in stable phases of these compounds as well as phases that are typically only obtainable under special conditions.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Orthorhombic Tin Dioxide Nanowires in Track Templates

Baimukhanov,

Dauletbekova,

Junisbekova

et al. 2024

Materials

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Electrochemical deposition into a prepared SiO2/Si-p ion track template was used to make orthorhombic SnO2 vertical nanowires (NWs) for this study. As a result, a SnO2-NWs/SiO2/Si nanoheterostructure with an orthorhombic crystal structure of SnO2 nanowires was obtained. Photoluminescence excited by light with a wavelength of 240 nm has a low intensity, arising mainly due to defects such as oxygen vacancies and interstitial tin or tin with damaged bonds. The current–voltage characteristic measurement showed that the SnO2-NWs/SiO2/Si nanoheterostructure made this way has many p-n junctions.

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Ion-Track Template Synthesis and Characterization of ZnSeO3 Nanocrystals

Cited by 16 publications

References 74 publications

Formation of zinc selenite nanostructures in SiO2/Si track templates with the use of two kinds of electrolytes

Formation of zinc selenite nanostructures in SiO2/Si track templates with the use of two kinds of electrolytes

Raman Analysis of Nanocrystals Based on Zinc Selenide

Synthesis of Orthorhombic Tin Dioxide Nanowires in Track Templates

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