Photoluminescence Properties of ZnO Nanorods Synthesized by Different Methods

Kurbanov, S. S.; Уролов, Ш.З.; Shaymardanov, Z. Sh.; Cho, H. D.; Kang, Tae Won

doi:10.1134/s1063782618070126

Cited by 7 publications

(4 citation statements)

References 24 publications

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“…Except for the UV peak, other luminescence bands in the visible region of the spectrum do not appear. According to [50], the observed UV peak can be attributed to the edge luminescence of zinc oxide (free excitons luminescence).…”

Section: Parameter Value Znse Znomentioning

confidence: 99%

ZnO nanowires for photoelectric converter applications

Кидалов

Sosnytska

Dyadenchuk

et al. 2021

ijmph

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This work is focused on the creation and study of photosensitive structures based on zinc oxide nanofibers, which are promising for solar energy. Zinc oxide nanowires were obtained on the porous zinc selenide surface. The porous substrate was obtained by electrochemical etching of a low-resistance n-ZnSe plate (110) with a polished surface. Nanowires were deposited by radical-beam epitaxy. The annealing temperature was varied from 400°C to 500°C. The oxygen radical flux was 1.5•10 17 cm -2 s -1 . The process duration was 50 minutes. According to the scanning electron microscopy results, the nanowires length reaches 10 μm, the nanowires diameter is ~1 μm. The predominant X-ray diffraction reflex at 2θ=34.44° indicates the polycrystalline nature of the manufactured ZnO coatings with a wurtzite-type hexagonal lattice. The study of nanowires ZnO luminescence at room temperature contains an ultraviolet peak around 385 nm. This peak is related to the zinc oxide edge luminescence. Based on the fabricated structure, the design of the photoconverter was developed. The upper contact of the fabricated photoelectric converter was created by vacuum thermal sputtering of aluminum through a mask. The deposition was carried out at a substrate temperature of 200° C. Ohmic contacts were made using conductive silver paste. The reverse ohmic contact was formed by applying Al paste to the entire reverse side of the surface. The upper layer of the structure is an array of ZnO nanowires. The active base layer is ZnSe. The light volt-ampere characteristics of the obtained structure were measured in the AM 1.5 illumination mode. No-load voltage Uxx, short-circuit current Isc and the fill factor of the current-voltage characteristic FF of the solar element were measured. The efficiency of the manufactured photoconverter was 13.7 %.

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Section: Parameter Value Znse Znomentioning

confidence: 99%

ZnO nanowires for photoelectric converter applications

Кидалов

Sosnytska

Dyadenchuk

et al. 2021

ijmph

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“…Для создания фотокатализатора нанороды ZnO были синтезированы низкотемпературным гидротермальным методом [14] на сетке, образованной перекрестным переплетением проволок из нержавеющей стали. Предварительно подложки (куски сетки размером 20×20 мм и расстоянием между ячейками примерно 0.1×0.1 мм) последовательно очищали в ультразвуковой ванне в течениe 15 минут в ацетоне и этиловом спирте.…”

Section: экспериментunclassified

Фотокаталитический Эффект Нанородов Оксида Цинка, Синтезированных Гидротермальным Методом

Курбанов¹,

Уролов²,

Шаймарданов³

et al. 2019

УФЖ

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В работе сообщается о формировании нанородов ZnO на поверхности сетки из нержавеющей стали. Нанороды в поперечном сечении имеют правильную гексaгональную форму. Длина нанородов 2−15 мкм и диаметр 0.07−1 мкм. В присутствии нанородов и при освещении УФ излучением водный раствор органического красителя родамин 6G обесцвечивается вследствие деградации красителя. Наблюдаемый эффект объясняется фотокаталитическим действием нанородов ZnO.

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“…The formation of defects on the surface of crystals when exposed to atomic particles has always been of interest to researchers due to the widespread use of these materials in surface engineering, 1–3 optoelectronics, 4–9 photovoltaics 10–13 space materials science, 14,15 and other fields of science and technology 8,16–20 . Today, high‐tech materials, in contrast to bulk materials, have special surface properties with special performance characteristics 21,22 .…”

Section: Introductionmentioning

confidence: 99%

“…The formation of defects on the surface of crystals when exposed to atomic particles has always been of interest to researchers due to the widespread use of these materials in surface engineering, [1][2][3] optoelectronics, 4-9 photovoltaics [10][11][12][13] space materials science, 14,15 and other fields of science and technology. 8,[16][17][18][19][20] Today, high-tech materials, in contrast to bulk materials, have special surface properties with special performance characteristics. 21,22 Investigation of the processes of modification of the surface properties of materials by bombardment with electrons and ions is one of the most important areas of materials science.…”

Section: Introductionmentioning

confidence: 99%

Influence of the irradiation of ions of different mass on the formation of surface defects of lithium fluoride thin films

Sharopov

Kaur

Kurbanov

et al. 2022

Surface & Interface Analysis

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We explore the experimental and simulation results of the formation of defects on the surface of lithium fluoride thin films under irradiation with different mass ions using total current (TC) spectroscopy, secondary ion mass spectroscopy (SIMS), and the Stopping and Range of Ions in Matter (SRIM) software package. A comparative study was carried out with ions of different masses, and inconsistencies in the occurring physical phenomena between our early concepts were found. It is shown that in the case of heavy ions irradiation, they are implanted and appear as substitutional atoms into the bulk of the crystal. For ions with the smallest ion mass, the distribution of interstitial defects is greater on the surface than in the bulk of the crystal. An attempt is made to explain the formation of some defects on the surface (formed peaks in the TC spectra) by the method of computer simulation.

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Photoluminescence Properties of ZnO Nanorods Synthesized by Different Methods

Cited by 7 publications

References 24 publications

ZnO nanowires for photoelectric converter applications

ZnO nanowires for photoelectric converter applications

Фотокаталитический Эффект Нанородов Оксида Цинка, Синтезированных Гидротермальным Методом

Influence of the irradiation of ions of different mass on the formation of surface defects of lithium fluoride thin films

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