najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2023-14-6-633-643najo-145Research ArticlePHYSICSФИЗИКАStudy of the electrical and electronic properties of crystalline molybdenum disulfide (MoS2-3R) semiconductor nano using alternating current (AC) measurementsИсследование электрических и электронных свойств кристаллического нанополупроводника дисульфида молибдена (MoS2-3R) с использованием измерений переменного тока (AC)https://orcid.org/0009-0007-4525-9664Аль-ХусейнХ.AlhusseinH.

Hussein Alhussein

husianphy990@gmail.comАль-ШаррДж.AlSharrJ. Q

Jamal Qasim AlSharr

ОтманС.OthmanS.

Sawsan Othman

аль-ХамисиХ.AlKhamisyH.

Hassan AlKhamisy

University of AleppoSyrian Arab Republic202302062025146633643Copyright © Alhussein H., AlSharr J.Q., Othman S., AlKhamisy H., 20252025Аль-Хусейн Х., Аль-Шарр Д., Отман С., аль-Хамиси Х.Alhussein H., AlSharr J.Q., Othman S., AlKhamisy H.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/145

MoS2 nanostructures were prepared using the hydrothermal method by reacting ammonium heptamolybdate tetrahydrate ((NH4)6Mo7O244H2O) with citric acid monohydrate (C6H8O7H2O) in distilled water with the presence of sodium sulfide (Na2S). The surface structure studies of MoS2 showed that the size of the surface clusters of the studied tablet is of the order of 50 – 100 nm. Using measurements (Zetasizer Nano Series), we found that the particle sizes ranged from 150 – 350 nm. Alternating current (LCR) measurements were made for (tablet-MoS2) under a constant temperature T = 10 0C. Measurements of the parallel electrical capacitance (Cp) in terms of frequency (F) of tablet-Mo2S showed a sharp drop in the value of the electrical capacitance (Cp) with an increase in frequency within the range 20 Hz – 16 kHz. It is shown that the series capacitance increased with the increase of the applied potential.

Гидротермальным методом получены наноструктуры MoS2 путем взаимодействия тетрагидрата гептамолибдата аммония ((NH4)6Mo7O244H2O) с моногидратом лимонной кислоты (C6H8O7H2O) в дистиллированной воде в присутствии сульфида натрия (Na2S). Исследования структуры поверхности MoS2 показали, что размер поверхностных кластеров исследуемой таблетки составляет порядка (50-100) нм, а с помощью измерений (серия Zetasizer Nano) мы установили, что размеры частиц находились в пределах (150-350)нм. Также измерения переменного тока ( LCR)  проводились для таблетки-MoS2 при постоянной температуре (Т = 10)°С. Также измерения параллельной электрической емкости (Cp) в пересчете на частоту (F) (таблетка-MoS2) показали резкое падение значения электрической емкости (Cp) с увеличением частоты в диапазоне [20Гц-16кГц ], Cs уменьшается с увеличением потенциала (950)m v, Показано, что последовательная емкость увеличивается с увеличением приложенного потенциала.

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The authors declare that there are no conflicts of interest present.