Article
Optics
Manohar Singh, Anit K. Ambedkar, Shrestha Tyagi, Virendra Kumar, Prashant Yadav, Ashwani Kumar, Yogendra K. Gautam, Beer Pal Singh
Summary: In this study, pure ZnO and Cu-doped ZnO thin films were deposited on a glass substrate using reactive co-sputtering. The structural, morphological, and optical properties of the thin films were characterized. The results showed that Cu doping modified the crystal structure, surface morphology, and optical properties of ZnO thin films. These findings are important for the research and applications of Cu-doped ZnO thin films.
Article
Chemistry, Physical
Runtian Qie, Saeed Zajforoushan Moghaddam, Esben Thormann
Summary: This study demonstrates the importance of considering the optical properties of polydopamine coatings in ellipsometry analysis. By systematically varying the film thickness and surface roughness, it is shown that different oxidation conditions can lead to polydopamine coatings with varying structural and optical properties, requiring unique optical models for accurate estimation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
M. S. Sadeq, Amir Elzwawy, Mohamed E. El Awady, Ahmed A. Hamed, E. M. Sedqy, S. Ibrahim, Manal Abdel Baki
Summary: This study investigated the structural, optical, ligand field, and antibacterial properties of Cr2O3, ZnO and Na2O borosilicate glasses. The compositions of the glass system prepared were 70B(2)O(3)-14.8 SiO2-(15-x)Na2O-0.2Cr(2)O(3)-xZnO, with x = 0, 3, 5, and 7 mol%. X-ray diffraction (XRD) spectra confirmed the amorphous state of the glass specimens, while infrared (IR) spectra provided insights into the internal structure of the glass matrix. Optical absorbance spectra were used to determine optical parameters and ligand field parameters. Antibacterial activities were evaluated against Staphylococcus aureus and Escherichia coli. The results showed that ZnO doping led to an increase in the optical band gap and antibacterial activity.
Article
Chemistry, Physical
Wenkai Gao, Shengshuo Cao, Luyao Li, Jing Wang, Chao Liu, Jianjun Han
Summary: This study investigates the effects of ZrO2 addition on the glass network structure, crystallization behavior, and microwave dielectric properties of ZnO-B2O3 glass-ceramics. The introduction of ZrO2 decreases the connectivity of the superstructure, affecting the crystallization behavior and leading to the transformation of the main crystalline phase. The microstructure changes with increasing ZrO2 content, and the sintered glass-ceramics show increased relative permittivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Applied
Renata Rozylo, Monika Szymanska-Chargot, Urszula Gawlik-Dziki, Dariusz Dziki
Summary: The present study successfully prepared blue colored powders from cornflower petals through low temperature aqueous extraction and freeze-drying microencapsulation with 10% stabilizer mixture. The addition of 2% guar gum to maltodextrin was found to be the most optimal, significantly increasing process efficiency. The blue powders exhibited high antioxidant activity and total phenolic content.
Article
Materials Science, Ceramics
Gokhan Kilic, Shams A. M. Issa, Erkan Ilik, O. Kilicoglu, H. O. Tekin
Summary: This study successfully synthesized zinc-borate glasses with different Eu2O3 concentrations and investigated their optical, physical, and nuclear radiation shielding properties. The addition of Eu2O3 was found to affect the density, molar volume, and optical band gaps of the glasses. The glass with 3% mol Eu2O3 showed superior nuclear shielding competence.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Adeem Alshammari, Harm van Zalinge, Ian Sandall
Summary: The dissolution behavior of zinc oxide is investigated using spectroscopic ellipsometry to assess its suitability as a biosensing platform. The results show that functionalized zinc oxide surfaces are well-protected and do not dissolve significantly. The binding kinetics of the SARS-CoV-2 spike protein on aptamer-functionalized zinc oxide surfaces are studied, revealing fluctuation in surface density upon initial exposure and a stable increase in density with increasing protein concentration. The technique and setup demonstrate a limit-of-detection of 1 nanomole (nM) and a linear response up to 100 nM.
Article
Materials Science, Multidisciplinary
R. A. Elsad, Ahmed M. Abdel-Aziz, Emad M. Ahmed, Y. S. Rammah, F. I. El-Agawany, M. S. Shams
Summary: Lead-borate glasses reinforced by Er3+ and Nd3+ ions were fabricated and investigated for their physical, structure, ultrasonic mechanical, and dielectric properties. The introduction of Nd3+ and Er3+ ions caused changes in the local field on lead ions and formation of [PbO4] units. The addition of rare earth ions also affected the boron-boron separation, dielectric constant, and ac conductivity of the glasses.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Instruments & Instrumentation
Jingjing Xia, Weixin Xu, Yanjie Li, Gaowei Li, Xiangyun Wang, Yanmei Xiong, Shungeng Min
Summary: The public concern and increasing awareness of pesticide quality and authenticity has led to the development of a novel strategy combining FT-IR analysis and rapid authentication of pesticide. A pesticide IR spectral database including 604 pesticide standards was established. A pre-treatment method that can eliminate the negative effect of pesticide formulation on similarity estimation was proposed. The proposed strategy resulted in a 90% accuracy rate and a 3.33% error rate for pesticide samples.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Chemistry, Physical
S. Selvakumari, C. Venkataraju, S. Muthu, Ahmad Irfan, A. Saral
Summary: In this study, the upgraded geometrical structure, electronic and vibrational features of 5-chloro-2-hydroxypyridine were investigated using the B3LYP method with 6-311++G (d, p) basis set. Various molecular properties such as FT-IR and FT-Raman spectra, interaction energy, and electron density were analyzed. Additionally, drug likeness, environmental toxicity properties, and molecular docking were conducted to assess the compound's properties.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Spectroscopy
Sarah M. Kamil, Ashraf A. Abul-Magd, W. El-Gammal, H. A. Saudi
Summary: Glasses with specific compositions were successfully prepared by introducing Ni2+ ions as network modifiers, and the structural and property changes were verified by various analysis methods. These materials exhibited semiconducting behavior and showed potential for applications in the visible-NIR region.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Inorganic & Nuclear
Swaroop Sasidharanpillai, Jenny S. Cox, Cory C. Pye, Peter R. Tremaine
Summary: Raman spectra analysis of aqueous sodium borate solutions reveals the presence of a new ion, diborate ion, at around 865 cm(-1) at elevated temperatures. The diborate ion is different from previously reported polyborate ions and is most likely [B-2(OH)(7)](-). The study also suggests the existence of unidentified minor equilibrium species.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Ceramics
Wenkai Gao, Jie Zhang, Shengshuo Cao, Jing Wang, Luyao Li, Jian Ruan, Jianjun Han
Summary: High performance ultra-low temperature co-fired ceramics (ULTCC) were prepared using CuO-MgO-ZnO-Al2O3-B2O3-Li2O glass-ceramics. The substitution of ZnO with MgO improved the dielectric properties of the glass-ceramics due to the fine microstructure, high crystallinity, and decreased tetrahedral distortion. The sintering compatibility with Ag and Al electrodes was also demonstrated. These ULTCC materials have potential applications in the field.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
R. Bhavani, N. Kanagathara, M. K. Marchewka, J. Janczak
Summary: The current research investigates the structural and spectroscopic characterization of the products formed in the aqueous solution of hydrazine and maleic acid. Both experimental and theoretical methods are used to analyze the structure and vibrational spectra. The study also explores the molecule's charge transfer and nonlinear attributes.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Spectroscopy
Elisa Fardelli, Annalisa D'Arco, Stefano Lupi, Daniela Billi, Ralf Moeller, Mariangela Cestelli Guidi
Summary: In recent decades, Mars has been extensively studied as a potential host for life through on-site missions and observations. Space Agencies have conducted experiments on living organisms to understand their behavior in extraterrestrial conditions and to develop techniques for identifying biosignatures remotely. This study focused on the radioresistant cyanobacterium Chroococcidiopsis, investigating its response to radiation stress using Raman spectroscopy, Fourier Transform InfraRed (FT-IR) and Terahertz Time Domain spectroscopy (THz-TDs), which demonstrated the suitability of these techniques for future space missions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Energy & Fuels
Elif Ketenci Ozsoy, Ferhunde Atay, Orhan Buyukgungor
Summary: This study investigated the influence of sulfurization temperature on Cu2SnS3 films, and the results showed that sulfurization at 550 degrees Celsius significantly reduced undesired CuS secondary phases, enhancing the photovoltaic performance of the films.
Article
Optics
Emrah Sarica, Vildan Bilgin, Idris Akyuz
Summary: In this study, VOx semiconductor films were deposited on glass substrates using ultrasonic spray pyrolysis technique. The effect of substrate temperature on physical properties of thin films was investigated. XRD analysis showed that substrate temperature significantly influenced the structural and phase composition of the films; different characteristics were observed in terms of optical and electrical properties.
Article
Materials Science, Multidisciplinary
Isil Merve Songur Sozak, Ugur Yorulmaz, Ferhunde Atay, Idris Akyuz
Summary: Cu2SnS3 is a promising absorber for green thin film solar cells due to its suitable optoelectrical properties and environmentally friendly components. CTS films were prepared by sulphurization of stacked metallic precursors deposited by thermal evaporation in this study. The research suggests a way of minimizing the secondary phases to obtain a single phase tetragonal CTS by increasing the amount of sulphur used in sulphurization stage.
CURRENT APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Esra Kus, Ayse Kucukarslan, Barbaros Demirselcuk, Emrah Sarica, Idris Akyuz, Vildan Bilgin
Summary: The study investigated the effect of Ni doping on Co3O4 films, showing that Ni doping significantly improved the crystallinity and electrical properties of the films, enhancing the electrical conductivity and making them suitable for technological applications.
Article
Materials Science, Multidisciplinary
Idris Akyuz, Irem Yeni
Summary: This study focused on improving the properties of ZnS films for photovoltaic applications through post-production heat treatment. Different annealing atmospheres impacted the crystal size and structure of the films, as analyzed by XRD and transmittance measurements. The study demonstrated that surfaces of ZnS films can be modified by heat treatment in Argon atmosphere, leading to improved morphology and high transmittance, suitable for solar cell technologies such as CZTS, CIGS, and CdTe.
Article
Materials Science, Multidisciplinary
F. Atay, O. Gultepe
Summary: In this study, boron-doped ZnO films were produced by sol-gel spin coating. The properties of the films were investigated, and it was found that boron doping significantly improved the photoactivity and dye adsorption capacity of pure-ZnO films, making them more suitable for photovoltaic applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
O. Gultepe, F. Atay
Summary: This study aimed to improve the properties of pure-ZnO films for photovoltaic and photocatalytic applications by incorporating Al element. ZnO and ZnO:Al films were economically produced by the solgel spin coating technique. The results showed that Al doping process led to an increase in the photocatalytic degradation efficiency and conductivity of the films.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
Ferhunde Atay, Idris Akyuz
Summary: Water pollution is a significant threat to human health and the environment worldwide. This study investigates the effect of solution molarity on the photocatalytic and physical properties of SnO2 films produced by ultrasonic spray pyrolysis. The results show that SnO2 film produced from a 0.05 M SnCl4 solution exhibits the highest performance in terms of photocatalytic degradation of methylene blue and can be reused for multiple cycles.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Orkun Gultepe, Ferhunde Atay
Summary: In this study, Al and B co-incorporated ZnO films with favorable physical properties were synthesized as alternatives to ITO films for solar cell applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Sadiye Cetinkaya Colak, Gokhan Kilic
Summary: In this study, zinc-silica-borate glass structures doped with rare earth (RE) oxides Eu2O3 and Nd2O3 were synthesized. The effects of doping with different ratios of two rare earth oxides on the structural, physical, and optical properties of the glass structure were investigated. The results showed that the doping of rare earth oxides can change the structure and optical properties of the glass.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Optics
S. Cetinkaya Colak
Summary: Sodium calcium silicate glasses incorporated with V2O5 were prepared using the melt-quench technique. The addition of ZnO improved light transmittance, while V2O5 reduced the optical band gap. The structural, thermal, and optical properties of the glasses were investigated.
Article
Materials Science, Ceramics
M. Soyleyici Cergel, F. Atay
Summary: In this study, the effect of Ir element on the structural, optical, electrical, and surface properties of ZnO films was investigated. It was found that 4% Ir-doped ZnO film exhibited the best crystallization level. The thickness and band gap values of pure, 4%, and 8% Ir-doped ZnO films were determined, and it was concluded that Ir-incorporated ZnO films with suitable properties can be used as photocatalysts.
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Orkun Gultepe, Ferhunde Atay, Zeynep Dikmen
Summary: An effective approach was presented to design ZnO powders for environmental applications, particularly in water pollutant degradation. Different supporting ligands were used for the first time in literature to produce ZnO powders with various surface morphologies. The supporting ligands had a strong influence on the structural, optical, and photocatalytic properties of the ZnO powders. ZnO-hexamethylenetetramine-hexylamine was identified as a suitable candidate for environmental applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
O. Gultepe, F. Atay, Z. Dikmen
Summary: In this study, a method for controlled production of ZnO nanorod arrays for wastewater pollutant degradation is proposed. Different supporting ligands with varying lengths and ends were used to prepare hydrothermal precursor solutions, allowing for control over the type, size, and alignment of ZnO nanorods. The physical and photocatalytic properties of the arrays were investigated, and it was found that the use of different ligands had varying effects on these properties. Especially, ZnO-HMTA-HMDA nanorod arrays showed high photodegradation efficiency and fast kinetic, indicating their potential as new functional nanomaterials.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Deniz Bozoglu, Sahin Yakut, Kemal Ulutas, Deniz Deger
Summary: Thin film polyethylene oxide, produced by the thermal evaporation technique, exhibits structural and property differences compared to bulk polyethylene oxide. The dielectric constant of polyethylene oxide thin film is 10 times greater than that of bulk polyethylene oxide. There is consistency among dielectric constants, activation energies, and free volume fractions for both thin film and bulk samples. Polyethylene oxide thin film is observed to be more brittle than bulk polyethylene oxide.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Xiaozhen Fan, Zhuo Wang, Zheng Fang, Huiqun Ye, Jinju Zheng, Jianqiang Zhang, Yanjun Qin, Yao Zhai, Yanlong Miao, Zixiang Zhao, Can Yang, Jiajun He, Zhenghang Wei, Yunzhang Fang
Summary: The microscopic strain evolution and microstructural of FeCuNbSiB amorphous alloy samples were studied under both free and tensile stress annealing conditions. It was found that an amorphous-nanocrystalline structure was developed in both samples after annealing at 813 K, and the size of nanocrystals was limited by the applied stress.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Atsushi Tanaka, Atsuki Saito, Takashi Murata, Ayako Nakata, Tsuyoshi Miyazaki
Summary: Although molecular dynamics (MD) simulation is a powerful tool for investigating the atomic-scale structures of complex materials, its reliable and accurate application to multi-component glass systems faces challenges due to limited force fields (FFs) and the complexity of chemical environments. This study demonstrates the feasibility of efficient and accurate large-scale density functional theory (DFT) calculations for multi-component glass systems. The evaluation of classical FFs based on the results of large-scale DFT calculations reveals low accuracy for non-bridging oxygen atoms, and differences in Si-O-Si angle distribution and electronic structure for X = Mg.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Petr Shvets, Ksenia Maksimova, Aleksandr Goikhman
Summary: In this study, vanadium oxide xerogel samples were successfully synthesized through a liquid phase reaction and the interaction of films with water. The samples were thoroughly analyzed using X-ray diffraction and Raman spectroscopy, revealing the existence of two distinct phases. It was also discovered that previous misinterpretations regarding the high-pressure polymorph structure were due to the formation of a high-temperature phase. These findings highlight the potential for further refining and expanding the current structural models of vanadium oxide xerogel in future research efforts.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Yiran Zhang, Jing Pang, Qingchun Xiang, Dong Yang, Yinglei Ren, Xiaoyu Li, Keqiang Qiu
Summary: The effect of the volume fraction of body-centered cubic (BCC) crystal on the room temperature brittleness of Fe-based amorphous nanocrystalline alloys was investigated. Molecular dynamics simulations were conducted to obtain seven model samples with different embedded BCC nanocrystal contents. The results showed a gradient decrease in the plasticity of the alloys with different nanocrystal contents.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Moustafa Sahnoune Chaouche, Hani K. Al-Mohair, Shavan Askar, Barno Sayfutdinovna Abdullaeva, Naseer Ali Hussien, Ahmed Hussien Alawadi
Summary: In this work, a novel micromechanical data-driven machine learning framework was proposed to characterize material parameters in bulk metallic glasses. The framework utilized nanoindentation simulations with Berkovich and spherical tips to compile a vast collection of data on material behavior in BMGs. The developed machine learning model efficiently predicted critical material properties and highlighted the importance of input feature weight functions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Louisiane Verger, Vinuyan Ganesaratnam, Virginie Nazabal, Sebastien Chenu, Christophe Calers, David Le Coq, Laurent Calvez, Olivier Hernandez, Xiang-Hua Zhang
Summary: Crystallization in Ga, Sb, and Se glasses was studied, and a correlation between Se content, crystalline phases, and electrical conductivity was observed. The resulting glass-ceramics exhibited significantly higher conductivity compared to other Se-based glass-ceramics.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Seong-Sik Shin, Ga-Yeong Kim, Byeonggwan Lee, Jae-Hwan Yang, Yeon-Su Son, Jung-Hoon Choi, Jae-Young Pyo, Ki Rak Lee, Hwan-Seo Park, Hyun Woo Kang
Summary: In this study, silver tungstate-tellurite glass with different loading of AgI was developed for immobilization of radioactive iodine. The effects of increasing the amount of AgI on the glass matrix were investigated. The leaching properties of all samples were evaluated, and it was found that the release of all elements satisfied the US regulation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Chunghee Nam
Summary: This study demonstrates the prediction performance of a CNN regression model for the magnetic entropy changes and transition temperatures of bulk metallic glasses with magnetocaloric effects. The model achieved high prediction performance, as measured by the determination coefficient and root mean square error. The results showed good agreement with experimental values and reported results.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
A. Hosny, Y. M. Moustafa, G. El-Damrawi
Summary: In this study, crystalline glass ceramics were obtained directly from glasses using an ion exchange process between lead bromide and oxygen ions. The addition of lead bromide caused significant changes in the glass structure and the formation of specific crystalline phases.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Luana Cristina Feitosa Alves, Jheimison Ferreira Gomes, Natacya Fontes Dantas, Maria Nayane Queiroz, Pablo Nabuco Portes, Francielle Sato, Nilma de Souza Fernandes, Karina Miyuki, Celso Vataru Nakamura, Alysson Steimacher, Franciana Pedrochi
Summary: This study evaluated the influence of CaF2 addition on the bioactivity of the samples. The results showed that the samples exhibited good bioactivity and cytocompatibility, making them suitable for biomedical applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
N. Keninger, S. Feller
Summary: The principles of Topological Constraint Theory (TCT) were used to study alkali borate and silicate glass systems. Structural models were developed based on experimental data and used to predict properties of the glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Hao Wang, Chengliang Zhao, Chuntao Chang, Shengli Zhu, Zhankui Zhao
Summary: The relationship between the heterogeneous structure and structural relaxation in metallic glasses was explored by investigating the quasielastic and viscoelastic behavior of a Zr55Cu30Ni5Al10 metallic glass. Stress-annealing treatment was used to retain elastic strain energy, and a unique creep recovery phenomenon was observed during the reheating process. The Maxwell model was employed to qualitatively describe the mechanisms of elastic strain energy retention and release.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Sihyung Lee, Giyeol Han, Karuppasamy Pandian Marimuthu, Hyungyil Lee
Summary: This study presents a method for extracting FVM parameters of Zr-based TFMG using MD and FEA, and validates the method through simulation and experiments.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Nedra Saad, Mohamed Haouari, Mayssa Ibrahim, Noura Amamou
Summary: In this work, we investigated the optical properties of a fluorophosphate glass system doped with Tb3+ and Eu3+ ions. We found that the emitted light can be tuned by changing the doping concentration, excitation wavelength, or excitation power, which is important for the design of solid-state lighting sources.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
