Article
Materials Science, Multidisciplinary
Suxia Hou, Shengbin Wu, Jijun Luo, H. Elhosiny Ali, Sam Eli
Summary: The optical, photocatalyst, magnetic, and electric properties of tin oxide co-doped by Ag and Co were investigated. The appropriate doping of Ag and Co was observed, with no formation of new compounds. The presence of Ag reduced the band gap energy of SnO2, while Co increased it. The co-doping of Ag and Co enhanced the photodegradation and the magnetization saturation and coercivity of tin oxide. The electrical conductivity and dielectric constant of tin oxide also increased significantly.
Article
Chemistry, Inorganic & Nuclear
Edapalli Sumalatha, N. Hari Kumar, Avula Edukondalu, D. Ravinder
Summary: In this study, lanthanum ion doped zinc cobalt ferrite nanoparticles were successfully synthesized using the citrate gel auto-combustion method, and the structural characterization was analyzed from various aspects. The results show that the doping of lanthanum ion can modify the lattice parameter, surface area, and surface roughness of the nanoparticles, and have an impact on the magnetic and electrical properties.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Zein K. Heiba, Mohamed Bakr Mohamed, Noura M. Farag, Sameh Ahmed
Summary: In this study, Zn and Mn co-doped nano-NiFe2O4 (NFO) system was prepared and characterized, revealing significant effects of co-doping on the crystal structure and optical properties of NFO. The results showed that the nanocomposite samples emitted UV, violet, blue and green colors with photoluminescence intensity dependent on the amount of ZMO doping in the matrix.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Physics, Multidisciplinary
Sara A. Mohamed, Mahrous R. Ahmed, H. M. Ali, A. M. Abdel Hakeem
Summary: The solid state reaction method was used to prepare Sb-doped SnO2 materials, which showed improved crystallinity and reduced grain size due to the doping. The doped materials exhibited semiconductor-like behavior and showed potential as window layers in solar cell applications. Additionally, the materials exhibited paramagnetic properties.
Article
Materials Science, Multidisciplinary
N. H. S. Nasralla, Sahar M. Mousa, Gehan T. El-Bassyouni, G. M. El Komy
Summary: Nano-composite films of Co3O4/SnO2 were prepared via sol gel method and showed potential for optoelectronic applications. The films exhibited both polycrystalline and amorphous behavior, with the optical properties being influenced by the Co3O4 content.
Article
Materials Science, Multidisciplinary
Kadhim R. Gbashi, Asaad A. H. Alzubaidi
Summary: Zn-doped and Sn:Zn co-doped CdS semiconductor nanostructures were fabricated by chemical reaction and thin films were deposited using pulsed laser method. XRD analysis confirmed the hexagonal phase with fine nano-crystallites. UV-visible test showed good transmittance and increased energy gap for Zn:CdS compared to bulk CdS. Electrical examination revealed that adding Sn ions to Zn:CdS composition enhanced the current with increased applied voltage. AFM analysis showed smooth surfaces with increased roughness due to co-doping ions.
Article
Materials Science, Multidisciplinary
M. Tanveer, Iqra Nisa, Ghulam Nabi, Muhammad Khalid Hussain, Syed Khalid, M. A. Qadeer
Summary: The novel study successfully prepared Cd-Zn co-doped Magnesium ferrites and systematically analyzed their structural, optical, and magnetic behavior. The experimental results suggest potential applications for this co-doped Magnesium ferrite.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Physical
Ying Jiang, Aimin Sun, Xiaoyan Huang, Jialing Wang
Summary: Yb3+-doped Zn-Cu-Co ferrites were successfully synthesized by the sol-gel method in this study, and their properties were systematically investigated. The results showed that the doping amount had impacts on the crystal structure, chemical properties, and magnetic properties of the samples. Yb3+ doping could enhance the saturation magnetization of the materials, making them suitable for communication and high-frequency components.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
N. Hari Kumar, D. Ravinder, Avula Edukondalu
Summary: Citrate-gel auto-combustion method was used to synthesize cerium-doped nickel zinc ferrite nanoparticles with good crystalline structure and size. The nanocomposites showed excellent antibacterial properties and can be used as nanocarriers in the pharmaceutical and medical fields. In addition, the dielectric characteristics of the nanocomposites at different frequencies were investigated.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Zulfiqar, Saeed Ur Rahman, Tahirzeb Khan, Rajwali Khan, Gulzar Khan, Shaukat Khattak, Nasir Rahman, Shahid Ali, Tang Hua
Summary: Different nanoparticles (NPs) were prepared using the co-precipitation route, with Co and Ni incorporated into the SnO2 matrix. The XRD data showed a reduction in crystallite size and an increase in oxygen vacancies concentration with higher Co content. The dielectric properties were strongly influenced by doping, with S4 NPs exhibiting the highest values for dielectric loss factor and AC conductivity.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
A. Pramothkumar, E. Vivek, T. C. Sabari Girisun, M. Meena, I. Vetha Potheher
Summary: Compared to bulk materials, nanostructured materials possess ultrafast optical response and strong two-photon absorption, making them suitable for various laser related applications. In this study, cobalt-nickel co-doped tin dioxide (SnO2) nanoparticles were synthesized and their optical limiting behavior was investigated. The results showed that the band gap of the co-doped nanoparticles decreased and the intensity of blue-green emission increased, indicating the presence of oxygen vacancies. The nanoparticles also exhibited low dielectric constant, dielectric loss, and ac conductivity, suggesting a reduced number of defects. The nonlinear optical absorption and optical limiting properties of the nanoparticles were recorded using the Z-scan method, showing a sequential two-photon absorption process and improved performance with increasing dopant concentration. These findings suggest that the cobalt-nickel co-doped SnO2 nanoparticles could be considered as potential candidates for high-performance dielectric materials and optical limiting components in optical devices.
Article
Materials Science, Multidisciplinary
H. G. Abd-Elbaky, M. Rasly, Reem G. Deghadi, Gehad G. Mohamed, M. M. Rashad
Summary: In recent years, the eco-friendly strong-base free synthesis has been applied to the synthesis of spinel cobalt ferrites, leading to successful preparation of the ferrites. By adjusting the composition and structure, the magnetic and optical properties of the cobalt ferrites were controlled, providing a feasible approach for magneto-optical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Sijo S. Thomas, I. Hubert Joe, P. Aswathy, Elizabeth Mathew, A. Alice Noble
Summary: Ni0.5Zn0.45Ca0.05Fe2O4 nanoparticles were synthesized and characterized for their structural, spectroscopic, magnetic, linear, and third-order nonlinear optical properties. The nanoparticles exhibited inverse cubic spinel structure, spherical morphology, and a bandgap of 1.85 eV. The synthesized compound showed significant optical limiting property.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Md Abu Sayeed, Hasan Khaled Rouf
Summary: The impacts of Al doping and annealing temperature on the structural, optical, and electrical properties of Sn1-xO2:Al-x thin films were investigated. High temperature annealing improved crystallinity and reduced defects, while Al doping decreased carrier mobility and concentration.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Multidisciplinary
Nusrat Jahan, Md Nazrul I. Khan, Jahirul I. Khandaker
Summary: The exploration of aluminum ion substituted nickel-zinc-cobalt nanoferrites is still in its infancy stage, with structural, electrical, and magnetic properties being widely investigated. The samples exhibited single-phase cubic nanospinel ferrites, with lattice constants decreasing with aluminum content, and well-crystallized nanoparticles being observed. The resistive nanoferrites with high saturation magnetizations have potential applications in multifaceted electronic devices.
