Article
Chemistry, Physical
Prashant Kumar, Saurabh Pathak, Arjun Singh, H. Khanduri, Kuldeep, Komal Jain, J. Tawale, Lan Wang, G. A. Basheed, R. P. Pant
Summary: This study investigates the spin dynamics of PEG-coated Erbium substituted nanocrystalline CoFe2-xErxO4 by FMR spectroscopy, revealing that the optimum doping concentration is x = 0.3. Static magnetic measurements show ferromagnetic behavior in all sample compositions. The enhancement in magnetic properties is attributed to super-exchange interaction, while room temperature FMR spectra confirm ferromagnetic behavior with improved dynamic response.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Pedro Augusto Machado Vitor, Janio Venturini, Joao Batista Marimon da Cunha, Carlos Perez Bergmann
Summary: Mixed nanoferrites with varied compositions were synthesized using a nitrate/citrate sol-gel method. The different samples exhibited unique magnetic behaviors, with nickel ferrite showing soft magnetic properties and cobalt ferrite showing hard magnetic properties. The magnetic hardening upon Co2+ substitution was attributed to an increase in anisotropy energy and a decrease in inversion degree.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
A. S. Kakde, G. C. Wakde, M. A. Wani, V. M. Gaikwad, N. S. Meshram, A. B. Lad, K. G. Rewatkar, R. M. Belekar
Summary: This research module focuses on the microwave-assisted sol-gel combustion synthesis of rare earth doped Ni-Co-Zn spinel ferrite nanoparticles. Various characterization techniques were used to investigate the phase formation, morphologies, crystal structure, and magnetic properties of the samples. The addition of rare earth and non-magnetic ions was found to influence the coercivity, magnetic interaction constant, permeability, and Curie temperature of the ferrite. The obtained nanocrystalline ferrites have potential applications in switching devices and high-frequency devices.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Ziyu Li, Haiyang Jin, Hong Wang, Chuanjian Wu, Qifan Li, Haizhi Dou, Xiaona Jiang, Ke Sun, Zhongwen Lan, Zhong Yu
Summary: This study investigates the effects of Cu substitution for Mn on the properties of MnZn ferrites. It is found that increasing Cu content enhances density, reduces porosity, and promotes grain growth. However, it also leads to reduced saturation magnetization and initial permeability, increased magnetic anisotropy, and deterioration of core loss.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Xiangchun Yin, Jianguo Huang, Zidie Pu, Jinfeng Li, Hao Feng, Xiaoyang Wang, Yiqun Wang
Summary: This study investigates the color modification mechanism of a blue-green pigment by analyzing the cation distributions in the spinel structure and the effects of calcination temperature, providing insights into the factors influencing pigment hue.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Condensed Matter
T. Rafique, M. Atif, M. Nadeem, T. Meydan, J. Cuenca, W. Khalid, Z. Ali
Summary: Chromium-doped Ni0.3Co0.2Zn0.5Fe2-xCrxO4 (0.0 ≤ x ≤ 0.1) nanoferrites were synthesized via the sol-gel technique, and the influence of cation distribution on their physical properties was investigated.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Engineering, Electrical & Electronic
Mehmet Kuru, Tugba Sasmaz Kuru
Summary: In this study, Mg0.75Zn0.25CrxFe2-xO4 (x = 0.4, 0.5) (MZC) nanoferrites were prepared and their crystal properties, surface morphology, magnetic properties, dielectric properties, impedance properties, and conductivity properties were investigated. The complex impedance behavior and AC/DC conductivity mechanisms were determined, and a non-Debye relaxation process was observed in the high frequency region. Additionally, the humidity sensing properties and the influence of relative humidity on impedance were studied.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
A. Bajorek, C. Berger, M. Dulski, M. Zubko, S. Lewinska, K. Prusik, A. Slawska-Waniewska, F. Grasset, N. Randrianantoandro
Summary: The study compares NiFe2O4 (coprecipitation) and NiFe2O4@SiO2 (coprecipitation and microemulsion) ferrite nanoparticles in their as-received and annealed forms. The results show that thermal treatment induces gradual crystallization in the as-received samples, with the presence of cubic inverse spinel ferrite structure confirmed in all samples. FTIR spectroscopy confirms the spinel structure and other Fe-based states, while a nonstoichiometric hematite is detected in the annealed NiFe2O4 sample. The study also reveals changes in magnetic properties and electronic structure with the effects of crystallization, grain growth, and hematite separation.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Sajjad Hussain, Imran Sadiq, Jameel Ahmed Baig, Farhan Sadiq, Imam Bux Solangi, Khalil Akhtar, Shakoor Ahmed Solangi, Mishal Idress, Saira Riaz, Shahzad Naseem
Summary: The aim of this study was to synthesize R-type hexagonal nanoferrites (SrSn2Fe4O11) for electrochemical sensing of metronidazole (MN) in pharmaceutical and human specimen. The SrSn2Fe4O11 were prepared by sol-gel auto ignition method followed by structural and surface characterization using X-Ray diffraction (XRD) and atomic force microscopy (AFM) respectively. The synthesized SrSn2Fe4O11 had a single-phase crystalline structure with a crystalline size of 34.451 nm and surface topography ranging from 0.506 to 3.37 nm. A glassy carbon electrode modified with SrSn2Fe4O11 (SrSn2Fe4O11/GCE) was fabricated using a drop-casting method. The SrSn2Fe4O11/GCE showed successful detection of MN in a phosphate buffer at pH-6, with a linear voltammetric response (R2 = 0.998) and a limit of detection and quantification (LOD/LOQ) for MN ranging from 0.011 to 0.036 mu M. A differential pulse voltammetric study demonstrated significant selectivity for MN on the SrSn2Fe4O11/GCE with a RSD of 2.0%. The proposed electrochemical method was successfully applied for the quantitative detection of MN in pharmaceutical preparations and biological specimens.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ch Srinivas, M. Deepty, S. A. Prasad, G. Prasad, E. Ranjith Kumar, Sher Singh Meena, Naidu Seetala, Darnel D. Willams, D. L. Sastry
Summary: The study successfully synthesized zinc ferrite nanoparticles substituted with nickel using the co-precipitation method and confirmed the formation of spinel ferrite phase through X-ray diffraction. The relationship between lattice parameter and crystallite size varied with the doping level of Ni2+, showcasing different vibrational frequencies and magnetic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Aafiya, M. Abushad, M. Arshad, Swaleha Naseem, Hilal Ahmed, Azizurrahaman Ansari, Vishal Kumar Chakradhary, Shahid Husain, Wasi Khan
Summary: Nanoferrites of the chemical formula Ni1-xZnxFe2O4 were synthesized via the sol-gel auto combustion process, and the influence of zinc doping on physical properties was explored. Results showed that zinc doping reduced crystallite sizes, increased dielectric constant and ac conductivity, while the magnetic behavior was affected by the distribution of metal cations.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Electrical & Electronic
Meiyu Chen, Jun-Long Liao, Hsing- Hsiang
Summary: This study investigates the effects of adding Li-B-Si-Ca-Mn (LBSCM) glass on the dielectric relaxation and AC impedance of sintered CSZT ceramics in a reducing atmosphere. It is found that the CSZT ceramics added with LBSCM glass can be densified at low temperatures with lower dielectric losses.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
J. N. Pavan Kumar Chintala, S. Bharadwaj, M. Chaitanya Varma, G. S. V. R. K. Choudary
Summary: The present study investigated the site occupancy of cobalt in Ni-Zn ferrite using various analytical techniques and proposed a hypothesis about cation distribution. Experimental results showed that there was a slight enhancement in lattice vibrations with cobalt doping, and no significant variation in the strength of the ionic bond.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Ceramics
Ritesh Verma, Ankush Chauhan, Khalid Mujasam Batoo, Rajesh Kumar, Muhammad Hadi, Emad H. Raslan
Summary: Sr2+ doped Ba0.9-xCa0.1SrxTi0.8Zr0.2O3 nano-ceramics were synthesized by the conventional solid-state reaction method. XRD analysis confirmed the formation of a single-phase orthorhombic ABO3 structure, with increased crystallite size and decreased lattice parameter, dislocation density, and apparent density with doping. Porosity increased with doping, and various spectroscopy techniques revealed structural and compositional changes in the materials.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Condensed Matter
Pargam Savita, Pargam Vashishtha, Govind Gupta, Ankush Vij, Anup Thakur
Summary: In this work, intense red-NIR emission and color tuning are achieved for broad UV/blue/green excitation range in Cr-doped MgAl2O4 nanocrystals. The defect centers induced by Cr dopants and cation inversion in the crystal structure play a critical role in the emission. The red-NIR emission is enhanced under UV excitation and the emission color can be tuned from red purple to bluish purple and then to red with increasing doping concentration.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Engineering, Multidisciplinary
Zein K. Heiba, Mohamed Bakr Mohamed, Sameh. I. Ahmed
Summary: Nano gadolinium oxide doped polyvinyl alcohol/polyethylene glycol blend was prepared and its structural, thermal, and optical properties were investigated. The doping of nano Gd2O3 affected the melting temperature and degradation temperature of the blend, as well as its optical characteristics.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
A. M. El-naggar, Zein K. Heiba, Mohamed Bakr Mohamed, A. M. Kamal, G. Lakshminarayana
Summary: A Poly(vinyl alcohol)/poly(ethylene glycol)/polyvinyl pyrrolidone blend loaded with nano-(Zn0.75-xFexCd0.25S) was prepared using thermolysis and casting procedures. The addition of Fe ions resulted in a slight increase in cell parameter and a decrease in crystallite size. X-ray diffraction analysis indicated possible cross-linking between different polymers in the blend. UV-Vis spectra analysis showed that the nanofiller-loaded blend had the highest values for absorbance, extinction coefficient, refractive index, dielectric constant, optical conductivity and nonlinear optical parameters when Fe content was 10%. The fluorescence intensity and colors emitted were dependent on the amount of Fe in the nanofiller, with the blend containing 15% Fe exhibiting the highest fluorescence intensity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Zein K. Heiba, Mohamed Bakr Mohamed, Ali Badawi
Summary: This work investigates the impact of preparation temperature on the structural, optical, and electronic characteristics of vanadium doped ZnS nanoparticles. The results show that the parameters related to lattice defects, such as lattice size and microstrain, change with increasing temperature. The optical properties exhibit a decrease in the optical band gap energy and a blue shift in emitted colors with temperature. The electronic characteristics show that ZnS is a semiconductor, while doped samples exhibit half metallic or metallic characteristics.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Zein K. Heiba, Sameh Ahmed, Mohamed Bakr Mohamed
Summary: Nano-Eu-doped maghemite Fe2-xEuxO3 samples were prepared using a sol-gel route. The effects of Eu doping on the structure, optical, and magnetic properties of maghemite were investigated.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Multidisciplinary
Zein K. Heiba, Mohamed Bakr Mohamed, Ali A. Alkathiri, Sameh I. Ahmed, A. A. Alhazime
Summary: The physical and chemical properties of MFO and ZMO nanocomposite samples with different ratios were studied, revealing a relationship between optical parameters and the content of the ZMO phase in the nanocomposite samples.
Article
Engineering, Electrical & Electronic
Zein K. Heiba, Mohamed Bakr Mohamed, Sameh Ahmed, Hassan Elshimy
Summary: CdSx (x = 1.0, 0.8, 0.6, 0.4, 0.2) thin films were prepared by the sol-gel spin coating method and their phases, microstructure and optical properties were studied. The presence of sulfur deficiency was found to affect the optical parameters of the films.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
A. M. El-naggar, M. M. Osman, Anwar Q. Alanazi, Mohamed Bakr Mohamed, Zein K. Heiba, A. M. Aldhafiri
Summary: In this study, MACl(0.33)FAPbI(3)-doped perovskite thin films were fabricated using a new method, and the effect of doping on the optical properties was investigated. The results showed that doping with MACl(0.33)FAPbI(3) can alter the optical properties of the films and improve the fill factor and power conversion efficiency.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
A. M. El-naggar, Zein K. Heiba, Mohamed Bakr Mohamed, A. M. Kamal
Summary: In this study, pure and filled blends of PVA/PVP/PEG with different ratios of nanoCdS/Mg were prepared using thermolysis and casting procedures. The effect of preparation environment on the crystal structure and optical properties of the nanofillers and nanofiller-polymer composites was investigated.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
A. M. El-naggar, Zein K. Heiba, Mohamed Bakr Mohamed, A. M. Kamal
Summary: In this study, a blend of polyvinyl alcohol (PVA) and carboxymethyl cellulose (CMC) loaded with different ratios of zinc sulfide quantum dots (ZnS QDs) was prepared using thermolysis and casting methods. The nano nature of the powder filler was examined using X-ray diffraction analysis, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The optical features of the PVA/CMC blend were investigated using UV-vis diffuse reflectance spectroscopy. The results showed that increasing the loading ratio of ZnS QDs significantly affected the optical properties of the blend, providing the possibility for tuning the band gap, refractive index, and optical conductivity. The present materials have the potential for a wide range of applications in optoelectronics, coatings, and lenses.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. M. El-naggar, Zein K. Heiba, A. M. Kamal, Y. Altowairqi, Mohamed Bakr Mohamed, Omar H. Abd-Elkader, A. A. Alhazime
Summary: PVA/CMC/PEG blended polymers loaded with (1-x)CdS/xCuS nanocomposites were prepared using thermolysis and casting techniques. The optical properties were investigated, and it was found that loading CdS-CuS nanocomposites reduced the optical band gaps and increased the refractive index of the blends. The fluorescence intensity was enhanced with the introduction of CuS nanocomposites.
Correction
Materials Science, Multidisciplinary
A. M. El-naggar, Mohamed Bakr Mohamed, Rawabi E. Alatawi, Zein K. Heiba, M. M. Osman, Anwar Q. Alanazi
Correction
Optics
A. M. El-naggar, Zein K. Heiba, Mohamed Bakr Mohamed, A. M. Kamal, G. Lakshminarayana, Muhammad Ali Shar
Article
Polymer Science
A. M. El-Naggar, Shadia Z. Brnawi, A. M. Kamal, A. A. Albassam, Zein K. Heiba, Mohamed Bakr Mohamed
Article
Materials Science, Multidisciplinary
Zein K. Heiba, M. A. Ahmed, M. Hassan, Ali Badawi, A. M. El-naggar, Mohamed Bakr Mohamed
Summary: In this study, an effective Ag2CO3/CeO2 p-n junction was developed for the photocatalytic reduction of a model cationic pollutant, rhodamine B dye. The Ag2CO3/CeO2 heterojunction was formed through sol-gel and sonochemical routes, with silver carbonate successfully distributed on localized active sites. The physicochemical features of the solid specimen were analyzed through various experimental methods. The results showed that the p-n junction exhibited enhanced photocatalytic activity for the decomposition of the dye compared to pristine CeO2 nanoparticles.
Article
Polymer Science
A. M. El-Naggar, Zein K. Heiba, A. M. Kamal, Omar H. Abd-Elkader, Mohamed Bakr Mohamed
Summary: Doping mixed polymers with appropriate fillers is believed to be the most efficient method to create novel materials for optoelectronic applications. Undoped and doped PVC polymers with ZnS/Mn were fabricated at different temperatures, and their structure and microstructure were analyzed. The distribution of the nanofiller in the PVC matrix was determined using various techniques, and the effect of preparation temperatures on the optical properties of the PVC polymer was studied. Doping with ZnS/Mn decreased the optical band gaps and enhanced fluorescence intensity in the PVC.
Article
Materials Science, Multidisciplinary
Muhammad Haris Azhar, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Sarah Farrukh
Summary: This study uses a novel adsorbent Metal Organic Framework (MOF) and its composites to adsorb CO2. Experiment results show that 5 wt% g-C3N4/Ni-BDC MOF exhibits the highest adsorption capacity.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ayumu Nodera, Shinya Aikawa
Summary: In this study, a CO2 sensor capable of low-temperature operation was fabricated using an open-channel-type thin-film transistor structure with a polar surface of an oxide semiconductor. The sensor showed a sensitivity 2.9 times greater than that under an inert N2 atmosphere at an operating temperature of only 150 degrees C. The results suggest that TFTs fabricated with polar surfaces of oxide semiconductors are useful for gas-sensing applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bindhyabasinee Mishra, Jyotirmayee Nanda, Subhra S. Brahma, K. J. Sankaran, R. Sakthivel, S. Ghadei, S. Suman
Summary: In this study, a series of polycrystalline mixed spinel ferrites were synthesized and characterized. The Mg0.5Zn0.5La0.05Fe1.95O4 ferrite showed the best response and recovery time, indicating its potential as a material for LPG sensing.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Rajashree Panda, Mitrabhanu Behera, A. Arun Kumar, Dhananjay Joshi
Summary: Rare earth doped aluminate-based phosphors are preferred over sulfide-based phosphors. The unique luminescence features of lanthanide-based materials are being utilized for multidisciplinary research and inventive applications. The past years have seen an increase in research interest in aluminate-based phosphors, leading to improvements in their long-lasting phosphorescence and phosphorescence efficiencies. Combustion synthesis route is an efficient technique for preparing nano-phosphor due to its simplicity and cost-effectiveness.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Younes Zohrabi
Summary: Water is essential for the survival of living organisms, but industrialization has led to contamination of water sources with heavy metals and harmful pollutants. Magnetic nano ferrites have shown potential in effectively removing heavy metals from water due to their magnetic characteristics, high surface area, surface active sites, chemical stability, and ease of modification. This review explores recent literature on the synthesis and application of magnetic ferrites for removing heavy metals from water, aiming to provide a comprehensive understanding for future research.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Baolin Liu, Chenxin Xie, Guanglei Qian, Lishan Zhou, Chenglei Zhang, Lingzhi Zhu
Summary: In this study, a self-cleaning CuO-PdO-Pd/Ti membrane has been developed for the removal of small-sized pollutants. The membrane exhibited superior removal ability and permeability compared to conventional membranes, and maintained high efficiency even after repeated tests. The CuO-PdO-Pd/Ti membrane also showed excellent removal efficiency when treating real wastewater, indicating its high potential for practical applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Debabrata Panda, Akhilesh Kumar Sahu, Krunal M. Gangawane
Summary: A variety of hierarchical nanoporous silica aerogels were synthesized from well-dispersed silica sols, exhibiting diversified particle distributions and excellent thermal properties. The silica aerogels showed low thermal conductivity and high-temperature resilience. Surface modification and dilution of silica sols further improved the thermal resistance of the aerogels. The resilient skeleton structure developed from tiny particles effectively restricted heat dissipation and maintained the porous network at high temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hardy Shuwanto, Hairus Abdullah, Young Ku, Jenni Lie
Summary: In this study, a defective system of V-doped Fe2O3 with Pt as a cocatalyst was used for photoelectrochemical water oxidation. The defects in the VFPt-2.5 photoanode were characterized by XPS and EPR analyses. The SEM and TEM analyses revealed that the electrodeposited V-doped alpha-Fe2O3 had a nanosized morphology with an average diameter of 12 nm and a thickness of 300 nm. Under light irradiation, the VFPt-2.5 photoanode achieved a remarkable onset potential and photocurrent density. The stability test showed that Pt helped overcome the charge recombination caused by surface states.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Reza Gholipur, Hemin Mohammed Ali Khalifa, Khatereh Afrouzeh
Summary: Developing doped cathode materials is crucial for achieving low cost and high-performance energy storage. LiMn1.977(Ce, Cu, Ti, CeCuTi)0.023O4 nanoparticles show unmatched high structural stability, capacity, and safety during charge/discharge cycles. Ti-doped LiMn2O4 cathode calcined at 700 degrees C demonstrates the highest capacity and retention when multi-walled carbon nanotubes are added. The presence of titanium increases the porosity for reversible lithium storage and the dielectric constant.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha
Summary: This research provides an overview of the structural analysis and magnetic characteristics of dilute magnetic semiconductor oxides (DMSOs) based on binary metal oxide nanomaterials with different ferromagnetic or paramagnetic dopants. The coprecipitation method was used to create nanoparticle samples, and the results showed certain ferromagnetic behavior and increased magnetic properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Preeti Kumari, Vipul Srivastava, Ramesh Sharma, Hamid Ullah
Summary: In this study, the rare-earth ferrites perovskite RFeO3 (R = Pr, Nd) were investigated for their various properties including structural, electronic, magnetic, optical, thermodynamic, and thermoelectric behavior. The study found that these materials exhibit half-metallic behavior under certain conditions, and their optical and thermoelectric properties were evaluated, making them potential candidates for spintronic devices and UV absorbers.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shuting Yuan, Tianchi Wang, Tian Feng, Jian Kong
Summary: In this study, Fe/Fe3O4/C hollow electromagnetic wave absorbers were prepared using hollow ceiba fibers as templates. The proposed hollow structure could reflect and scatter electromagnetic waves multiple times, leading to significant energy consumption. The impedance matching of magnetic materials and biochar enabled the joint absorption of magnetic and dielectric losses to absorb electromagnetic waves.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
G. R. Mamatha, B. R. Radha Krushna, J. Malleshappa, S. C. Sharma, Satish Kumar, C. Krithika, Nandini Robin Nadar, Dileep Francis, K. Manjunatha, Sheng Yun Wu, H. Nagabhushana
Summary: Nanostructured SrAl2O4:Tb3+/M (M = Li+, Na+, K+, Ca2+, Bi3+) green nanophosphors were synthesized using an environmentally friendly combustion process and Areca nut as a sustainable fuel source. The introduction of alkali metal co-dopants optimized the luminescent intensity and showed potential for data security applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tomoyuki Tachibana, Akihiro Yabuki
Summary: A one-step thermal-reduction method was used to synthesize copper sulfide films with different compositions and pillar-like structures, through adjusting the sulfur ratio and incorporating excess sulfur during the synthesis process.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Mahdy, I. K. El Zawawi, Manal Mounir Ahmad
Summary: Pure PVA and its nanocomposites with CuO and/or CoFe2O4 films were prepared and characterized. The optical properties of the films can be modulated by controlling the percentage of CuO and/or CoFe2O4. The nanocomposites exhibit good ferromagnetic behavior, making the prepared films potentially useful in antenna system miniaturization and flexible magneto-electronic applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)