A5019663059- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Nuclear materials and radiation effects
- Dielectric properties of ceramics
- Semiconductor materials and devices
- Thermal and Kinetic Analysis
- Electrodeposition and Electroless Coatings
- Nanoparticles: synthesis and applications
- Advanced Memory and Neural Computing
- Semiconductor materials and interfaces
- Dielectric materials and actuators
- Electronic and Structural Properties of Oxides
- TiO2 Photocatalysis and Solar Cells
- Advanced Nanomaterials in Catalysis
- Multiferroics and related materials
- Advanced Photocatalysis Techniques
- 3D IC and TSV technologies
- Electrochemical sensors and biosensors
- Transition Metal Oxide Nanomaterials
- Ferroelectric and Negative Capacitance Devices
- Copper Interconnects and Reliability
- X-ray Diffraction in Crystallography
- Advanced ceramic materials synthesis
- Electrochemical Analysis and Applications
- Electronic Packaging and Soldering Technologies
Adama Science and Technology University
2021-2024
Hudson Institute
2023
Liechtenstein Institute
2023
Linde (United States)
2023
John Wiley & Sons (United States)
2023
American Rock Mechanics Association
2021
Multimedia University
2006-2016
University of Cyberjaya
2014
Universiti Teknologi MARA
2012
Indian Institute of Science Bangalore
1984-1985
We report the synthesis of medicinal plant, Vernonia amygdalina Del. mediated green copper oxide nanoparticles (VeA-CuO NPs). The presence two absorbance maxima, λmax 1 and 2 at 436 nm 452 nm, respectively confirms a mixture biomolecules surface amalgamated CuO NPs with different morphological features. FT-IR spectra plant leaf extract VeA-CuO confirmed efficient role as capping stabilising agents. XRD patterns approved high crystallinity CuO. purity was corroborated by SEM-EDAX analysis....
Green synthesis of metal oxide nanoparticles (NPs) is a viable alternative methodology because cost-effective and availability environmentally friendly templates for desired application, which has attracted the attention researchers in recent years. In present study, Co3O4 NPs were synthesized various volume ratios presence Solanum tuberosum leaf extract as template. The characterized by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDX),...
Copper oxide nanoparticles (CONPs) are one of the most important metal (MONPs) in emerging field nanomedicine due to their remarkable features. Novel CONPs were synthesized using ethanolic (50%, v/v) leaf extract indigenous plant Artemisia abyssinica for first time. The precursor salt concentration, volume, pH solution, and synthesis temperature optimized with UV-Vis spectrophotometer. Using UV-visible spectroscopy, SPR peaks observed at 408 nm, band gap was found be 3.039 eV, revealing its...
In this research work, the Metal-Insulator-Metal (MIM) capacitor structure is designed and fabricated with barium strontium titanate (BST) oxide material as dielectric silver both top bottom electrodes for dynamic random access memory (DRAM) cell. This consists of about 2 mm BST pellet 1 electrodes. The composition chosen Ba0.5Sr0.5TiO3 due to its better characteristics. characteristics MIM simulated are compared it found that experimental values practical be comparable. constant, charge...
NiFe films were pulse electrodeposited on conductive copper substrates under galvanostatic mode with and without the presence of an ultrasonic field at different current magnitudes duty cycles. The optimum deposition condition was found to be a magnitude 40 mA cycle 50.00% treatment. This has significantly reduced surface roughness from 39.01 ±1.1 nm 6.96 ± 1.1 spherical grain size in range 579.40 – 623.30 29.00 46.90 nm. On other hand, resistivity 19.86 µΩcm 54.00 as Ni content increased...
The electrical properties of bismuth magnesium tantalate pyrochlore, Bi3.30Mg1.88Ta2.82O13.88 (BMT) were investigated by both inductor-capacitor-resistor (LCR) and impedance spectroscopy techniques covering a broad temperature range 10–1073 K frequency 5 Hz - 1 MHz. At below ∼180 K, BMT pyrochlore exhibited interesting relaxor behaviour that showed high dispersion characteristics in its frequency-temperature dependent dielectric constants, ε′ losses, tan δ, respectively. maximum ε′max ∼77...
Due to the growing demand of energy and wastage energy, there exists an interest storing so that it could be utilized efficiently. Capacitors are materials designed for such application. Ferroelectric known their application as capacitors. Of materials, perovskites preferable classes have been used Barium strontium titanate nanomaterial is a member which encompasses smaller dielectric loss, elevated constant, good thermal stability. Research studies also clarified incorporating dopants into...
A moderate pyrochlore solid solution range of 0.00 ≤ x 0.64 was observed in the Bi3.36Fe2.08+xSb2.56-xO14.56-x (BFS) system prepared by solid-state reaction at 925 °C for 2 days. The overall charge compensation required a one-to-one cationic replacement and oxygen vacancies, i.e. Sb5+ ↔Fe3+ - O2–. BFS cubic pyrochlores showed their refined lattice parameters varying linearly 10.4284 (8)-10.4513(8), thus obeying Vegard's rule. measured crystallite sizes both Scherrer Williamson-Hall methods...
The influence of transition metals (Zn, Cd and Ni) on bismuth magnesium niobate (Bi3.5Mg1.8Nb2.7O13.8, BMN) pyrochlores was investigated. Considering the difference in their ionic radii, postulated to substitute Mg at eight-fold coordinated A-site whereas Zn Ni were replace six-fold B-sites host structure. Solubility limits these substitutional pyrochlore solid solutions determined be 0.4, 0.1 0.3 for Zn, Cd, respectively. Upon introducing divalent cation dopants, notable changes lattice...
Nowadays some countries are using advanced traffic light control systems to the signals in order ensure smooth travel for road users. Most of researchers use various methods identify density vehicles cameras or sensors. Sometimes these roads occupied by animals sleep lie down which disturbs movement vehicles. Due occupancy on road, also increases, may increase and hence there lots chances that collide with cities automatic systems. There no police available get rid animals. Especially...
A study of phase transition, microstructure, and dielectric properties Ba 0.7 Sr 0.3 Ti 1– x Ni O 3 ( BSTN ) ceramics prepared by slow‐injection solgel technique with ranging from 0 to 1 mol% is reported in this article. The as‐prepared material was calcined at 800 1000°C subsequently sintered 1100 1200°C, respectively. optimized condition found be TiO doped nickel 1200°C having the lowest loss 0.02 a constant 1603 which measured frequency kH z room temperature.
Iron doped Ba0.6Sr0.4TiO3 (Ba0.6Sr0.4Ti1 − xFexO3) ceramics have been synthesised using slow injection sol–gel technique and calcined at 1000°C. The dopant concentration processing control conditions were varied in order to investigate the structural magnetic saturation of iron barium strontium titanate materials (BSTF). X-ray diffraction analysis revealed that these crystallised perovskite structure. Scanning electron microscopy showed grains irregular shapes with size range 34–106nm....