Article
Materials Science, Multidisciplinary
Binbin Xin, Arnaud Le Febvrier, Lei Wang, Niclas Solin, Biplab Paul, Per Eklund
Summary: Highly pure CaxCoO2 thin films were successfully obtained through annealing multilayers, with excellent optical properties and the possibility to increase electrical conductivity by introducing a secondary phase. This study provides a new method for the preparation of solid-state oxide thin films.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
S. Aldawood, Wejdan M. Bannoob, M. S. AlGarawi, Turki S. Alkhuraiji, Yazeed Alashban, Nasser Shubayr, Syed Mansoor Ali
Summary: This study investigated the impact of gamma-ray on halide perovskite CuPbI3 thin films, revealing that increasing gamma-ray dose can significantly affect the crystallinity, grain size, and optical properties of the films. The findings suggest that gamma-rays play a main role in determining the properties of CuPbI3 thin films, making them favorable for sensing/detecting applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Hugh Littlehailes, William R. Hendren, Robert M. Bowman, Fumin Huang
Summary: The optical properties of intermetallic Au3Hf thin films were experimentally investigated and found to exhibit significant plasmonic characteristics. Compared to similar alloys, Au3Hf films demonstrated more negative epsilon' values and lower epsilon'' values across most of the tested wavelengths. The study also identified key conditions for isolating the pure Au3Hf phase.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Lucas K. Beagle, Qiyi Fang, Ly D. Tran, Luke A. Baldwin, Christopher Muratore, Jun Lou, Nicholas R. Glavin
Summary: This review highlights recent progress in the synthesis, customization of properties, and integration with other materials of porous polymeric covalent organic frameworks (COFs) thin films, showcasing their potential applications in filtration, electronics, sensors, and electrochemistry.
Article
Physics, Condensed Matter
Fatma M. Amin, H. Abdel-Khalek, Aida M. El-Sagheer, Mohamed Abd-El Salam, Ahmed M. El-Mahalawy
Summary: In this study, we investigated the relationship between the structure and spectroscopic properties of Ethyl Nile Blue thin films. We found that these films exhibit impressive infrared features and have high potential in UV-visible optoelectronics and optical switching applications.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Chemistry, Physical
Deepika, Deepika Gupta, Vishnu Chauhan, Aman Mahajan, Rashi Gupta, S. Asad Ali, Rajesh Kumar
Summary: In this study, tungsten oxide (WO3) thin films were grown on glass and silicon substrates using RF sputtering method and were subjected to gamma irradiation at varying doses. The results showed that the grain size and crystallite size of the thin films changed after gamma irradiation, and their optical and chemical properties were also altered.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
Beya Ouertani, Habib Boughzala, Bertrand Theys, Hatem Ezzaouia
Summary: The incorporation of ruthenium into FeSe2 thin films has shown significant improvement in optical and electrical properties, making them promising for photovoltaic applications. The alloyed films exhibited N-type conductivity with high absorption coefficients and desired band gap values. The use of ruthenium as an alloying agent in FeSe2 thin films shows potential for various applications, especially in the field of photovoltaics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Khaled Shamma, Abdullah Aldwayyan, Hamad Albrithen, Abdullah Alodhayb
Summary: The study investigates the use of TiO2 thin films for detecting gamma radiations on silicon micro-electromechanical systems. After irradiation from Co-60, the TiO2 thin film undergoes structural changes, making it a potential dosimeter for doses lower than 20 kGy applications. The Delta f(0) values measured by AFM offer convenient control parameters for the proposed dosimeter, with a linear response of sensors to doses between 0 kGy and 20 kGy.
Article
Optics
S. A. Alghamdi, A. A. A. Darwish, I. S. Yahia, E. F. M. El-Zaidia
Summary: The structure and optical properties of InClPc films deposited on FTO substrates by thermal vacuum evaporation technique were studied, revealing two energy gaps and nonlinear optical parameters. The optical limiting testing showed high performance of the red He-Ne laser.
Article
Chemistry, Physical
Katarzyna Plachete, Anna Kot, Joanna Banas-Gac, Marcin Zajac, Marcin Sikora, Marta Radecka, Katarzyna Zakrzewska
Summary: Titanium oxide thin films were deposited using rf magnetron sputtering, and their crystallographic structure, phase composition, morphology, and optical properties were extensively studied. It was found that the microstructure of the films changed with the O2 flow ratio, and promising photoanode materials for green hydrogen generation were identified.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Adel Chihi
Summary: The effects of gamma radiation on the properties of CuSbS2 (CAS) films were investigated. The CAS films were synthesized using the spin-coating technique and their structural, morphological, optical, electrical, and photoelectrochemical properties were examined. Gamma irradiation did not cause significant changes in the crystal structure, but it resulted in an increase in the optical band gap and improved the photoelectrochemical performance of the CAS films. The irradiated sample with a 15-kGy gamma dose showed a higher current density and better internal photon-to-current conversion efficiency compared to the pristine sample.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Dinesh C. Sati, A. Dahshan, H. H. Hegazy, K. A. Aly, Pankaj Sharma
Summary: This paper presents a detailed study on the optical and optoelectronic properties of (Ge2S8)100-xTex thin films for optical device fabrication. The refractive index and extinction coefficients were calculated using transmission spectra. The dielectric parameters and nonlinear refractive index were also evaluated. The results show that the addition of higher atomic radius elements Te in the Ge-S system increases the refractive index and third-order susceptibility, making the composition of Ge17.6S70.4Te12 suitable for optical device purposes.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Sandra M. Rojas-Montoya, Mireille Vonlanthen, Ricardo D. Martinez-Serrano, Fabian Cuetara-Guadarrama, Guillermina Burillo, Ernesto Rivera
Summary: Fluorescein-containing polymers were successfully prepared by gamma radiation grafting. This method avoids the addition of difficult-to-eliminate radical initiators while preserving the original properties of the polymer. The obtained polymers exhibit fluorescence characteristics, showing absorption and emission bands in the visible region of the UV-vis spectra, with potential applications in color filtering and optical materials.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Ramesh Ade, V Ganesh, Yugandhar Bitla, Y. Vijaya Kumar
Summary: This article investigates the impact of praseodymium (Pr) on the optoelectronic properties of spray pyrolyzed NiO thin films. The results show that Pr doping can enhance the sensing and detection properties of the photo-devices, making them potential candidates for optoelectronic applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Jijie Huang, Di Zhang, Zhimin Qi, Bruce Zhang, Haiyan Wang
Summary: In this study, Ag-LiNbO3 nanocomposite thin films were fabricated by co-deposition of Ag and LiNbO3, allowing for tailored density and size of Ag nanoparticles embedded in the matrix. The films exhibited surface plasmon resonance, tunable optical constants, and optical anisotropy, making them promising for photonic device applications.
NANOSCALE ADVANCES
(2021)
Article
Materials Science, Ceramics
Syed Khasim, Apsar Pasha, Syed G. Dastager, Chellasamy Panneerselvam, Taymour A. Hamdalla, S. A. Al-Ghamdi, S. Alfadhli, Mohammad Basha Makandar, Jalal Bassam Albalawi, A. A. A. Darwish
Summary: In recent years, there have been significant developments in agrotechnology, particularly in the application of nanotechnology for enhancing crop yield and quality. Nanomaterial-based sensors are being used to detect environmental conditions, support crop growth, and improve agricultural output.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
S. A. Al-Ghamdi, A. A. A. Darwish, Taymour A. Hamdalla, Apsar Pasha, Mohamed E. Elnair, Ahmed Al-Atawi, Syed Khasim
Summary: Carbon quantum dots (CQDs) have emerged as excellent materials for versatile technological applications due to their simple synthesis methods, outstanding optical properties, low toxicity, high bio-compatibility and favorable charge transfer. The eco-friendly synthesis of CQDs from biomass sources provides a solution to global waste management challenges. CQDs have attracted attention as energy storage materials and have been utilized as electrode materials in supercapacitors. This study reports the biological synthesis of CQDs using Halimeda opuntia green algae, which exhibit excellent optical and electrochemical performances and show potential for use in energy storage and conversion applications.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
A. M. Hassanien, A. A. A. Darwish, Saleem I. Qashou, A. A. Atta, Tariq A. Altalhi
Summary: We fabricated a ternary chalcogenide semiconductor thin layer, Ge33Se47Sn20, for optical applications using thermal evaporation technique. The chemical composition and crystal structure of the thin films were analyzed by energy-dispersive x-ray and x-ray diffraction measurements. The effects of UV irradiation on the linear and nonlinear optical properties were studied through UV-Visible spectra, and significant changes in optical parameters were observed, making them useful for optical applications.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Thermodynamics
A. M. Aboraia, Taymour A. Hamdalla, A. A. A. Darwish, B. M. Alotaibi, S. A. Al-Ghamdi, S. Alfadhli, Mohamed Saad, H. M. H. Zakaly, E. R. Shaaban, Alexander Soldatov
Summary: In this study, four different percentages of LiCo1 - xFexPO4 were synthesized using a hydrothermal route at low temperatures. The as-prepared sample exhibited a single orthorhombic Pn21a-phase at 220 degrees C. The thermodynamics and combustion process were investigated, and the kinetic parameters were calculated using thermogravimetric experiments. The study found that the thermodynamics properties of LiCo1 - xFexPO4 materials were efficient in investigating the temperature impact on pyrolysis activity and showed potential for various applications. The impedance spectrum analysis revealed that increasing Fe content improved the electrical conductivity of LiCoPO4.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
E. F. M. El-Zaidia, R. Bousbih, A. A. A. Darwish, Saleem I. Qashou, Zuhair M. Mohammedsaleh, Zaid Bassfar, I. S. Yahia, F. S. Abu-Samaha
Summary: Thermal evaporation was used to grow films of boron subphthalocyanine chloride (B-subPcCl) on glass substrates. X-ray diffraction was utilized to investigate the structure of the evaporated films, revealing their amorphous nature. Atomic force microscopy showed that the films were composed of spherical nanoparticles. The optical properties of the films were studied, with the evaluated band gap energy decreasing as film thickness increased. The dispersion parameters were calculated and found to increase with film thickness. The highest film thickness (300 nm) had a chi(3) value of approximately 9.6 x 10-13 esu, which is typical for optoelectronic devices.
Article
Materials Science, Multidisciplinary
Norah A. M. Alsaif, Shaik Kareem Ahmmad, Z. Y. Khattari, A. M. Abdelghany, Adel M. El-Refaey, Y. S. Rammah, M. S. Shams, R. A. Elsad
Summary: Glass systems with varying SrO content (0 mol% - 25 mol%) were manufactured and their density, radiation attenuation efficacy, and transmission factor were evaluated. Density was experimentally measured and predicted using artificial intelligence and machine learning techniques, achieving high accuracy. The highest linear attenuation coefficient was observed in the sample with SrO content of 25 mol%. The transmission factor depended on the density and photon energy, with different values observed for different energies. The half value layer was highest for the sample with 0 mol% SrO and lowest for the sample with 25 mol% SrO.
Article
Physics, Multidisciplinary
Ghayah M. Alsulaim, A. M. Aboraia, Taymour A. Hamdalla, A. A. A. Darwish
Summary: Dyes used in industry often end up in wastewater after use, posing a serious environmental issue. Our study focuses on using Zn100-xSmxO nanoparticles as a cost-effective and easily produced photocatalyst to break down common industrial dyes. We characterized the nanoparticles and found that the doping ratio affects their absorption and energy gap. The photocatalytic activity of the nanoparticles was evaluated, showing high efficiency in degrading the dyes.
Article
Physics, Multidisciplinary
A. A. A. Darwish, Saleem Qashou, E. F. M. El-Zaidia, K. F. Abd El-Rahman, Taymour A. Hamdalla, S. A. Al-Ghamdi, Abdulrhman M. Alsharari, Syed Khasim, Ahmed Obaid M. Alzahrani, I. S. Yahia
Summary: Through thermal evaporation, boron subphthalocyanine chloride (B-subPcCl) films were created, with an amorphous nature and surface composed of homogeneous elliptical nanoparticles. Impedance measurements showed that the transport charge mechanism is dominated by the correlated barrier hopping (CBH) model. The variation of dielectric constant and dielectric loss with frequency demonstrated a significant decrease as frequency increased, with a relaxation process in the imaginary modulus.
Article
Nuclear Science & Technology
M. Tokac, Z. Y. Khattari, M. S. Al-Buriahi
Summary: Investigations on metallic glasses have increased due to their high glass-forming ability, corrosion resistance, and chemical, mechanical, and magnetic properties. This study focused on Cobalt- and Iron-based metallic glasses with different Tantalum concentrations and used Monte Carlo simulation and Phy-X/PSD software to investigate their gamma-ray attenuation properties. The results showed that Tantalum density and larger atomic numbers are important factors in improving the radiation attenuation capabilities and shielding performance of the investigated glassy alloys.
RADIATION EFFECTS AND DEFECTS IN SOLIDS
(2023)
Article
Multidisciplinary Sciences
Ghada ALMisned, Elaf Rabaa, Yasser S. S. Rammah, Ziad Y. Y. Khattari, Duygu Sen Baykal, Erkan Ilik, Gokhan Kilic, Hesham M. H. Zakaly, Antoaneta Ene, Huseyin Ozan Tekin
Summary: We investigated the symmetry of mechanical and gamma-ray attenuation properties in some tellurite glasses by studying the elastic moduli, mechanical properties, and transmission properties with varied WO3 content. Four glass samples with different compositions and WO3/GdF3 substitution ratios were examined. The M4 sample with the highest WO3 addition showed the best photon attenuation properties among the glasses studied, with an increase in Poisson's ratio and a decrease in all elastic moduli. Increasing the WO3 content in tellurite glasses can be considered as a tool to provide symmetry for mechanical and gamma-ray attenuation properties.
Article
Chemistry, Applied
Saleem I. Qashou, A. A. A. Darwish, Ibrahim Ghabar
Summary: This study investigates the impact of an additional inorganic CuS layer on the charge transport properties between the ITO electrode and the organic material 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine (TTBTP). The findings show that the addition of the inorganic CuS layer reduces the built-in voltage and affects the values of Rs, Rsh, and n. The dark current density and applied voltage relationship confirms the theory of thermionic emission, while the power-law relation indicates a space charge limited current controlled by a distribution of trap levels. Furthermore, the additional inorganic layer enhances the photosensitivity, short-circuit current density, open-circuit voltage, and power conversion efficiency.
Article
Materials Science, Multidisciplinary
A. M. Hassanien, A. A. A. Darwish, A. M. Kamal, Mahmoud Al-Gawati, Taymour A. Hamdalla
Summary: In this study, the structural and spectroscopic investigations of 2,4-Bis[4-(N,N-dibenzylamino)-2,6 dihydroxyphenyl] squaraine dye (SQ) under different conditions of thermal effects were explored. The SQ dye exhibited good optical properties and thermal stability, with surface morphology and optical energy gap being influenced by thermal effects. The results of this study suggest potential applications of SQ dye as active photonic materials in photonic/optoelectronic applications.
Article
Chemistry, Physical
S. Al-Omari, F. Afaneh, R. A. Elsad, Y. S. Rammah, Z. Y. Khattari
Summary: This study investigates the indirect influence of temperature on the radiation attenuation capabilities of berlinite by examining its intrinsic parameters and crystal structure modulations.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Engineering, Electrical & Electronic
S. Al-Omari, F. Afaneh, Yasser S. Rammah, Ziad Y. Khattari
Summary: The purpose of this study was to examine the efficiency of MnO-based glass systems against x- or g-rays and their mechanical properties with varying amounts of MnO incorporation. The results showed that as the concentration of Mn2+ increased, the mass attenuation coefficient values of the glass systems also increased. Among the samples, the glass with 1.5 mol% of MnO exhibited the best shielding performance.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
F. Afaneh, Hanan Al-Ghamdi, Norah A. M. Alsaif, R. A. Elsad, Y. S. Rammah, Z. Y. Khattari
Summary: This paper presents a comprehensive investigation of the mechanical, elastic, and radiation shielding properties of copperphosphate glasses with different copper-valence-states, and explores their physical properties and radiation shielding abilities.
RADIATION PHYSICS AND CHEMISTRY
(2023)