KW – TechConnect Briefs

Enhancement of optical properties of Perovskite solar cells through added plasmonic nanostructures

Shehata N., Badran H., Kandas I., Hajjiah A., Kuwait College of Science and Technology, KW

Hybrid organic-inorganic perovskites have been extensively studied as a promising research topic in solar energy harvesting, due to their simple process, developed optical and electrical properties, and relatively low-cost materials. However, the perovskite solar cells [...]

Synthesizing a nanocomposite tungsten carbide-cobalt metal oxide

Al-Hazza A.A., Kuwait Institute for Scientific Research, KW

In this work a nanocomposite WC-Co metal oxide was synthesized by using a solid state mixing techniques. Certain metals oxide were used in this process (Al, Mg, Si, and Zr) to enhance the property of [...]

Nonlinear optical nanocomposite : Electrospun PVA nanofibers embedded with PCBS.

Samir E., Kandas I., Shehata N., Mahmoud A.K., Kuwait College of Science and Technology (KCST),, KW

This work presents a new electrospun nanocomposite of PVA nanofibers with embedded nonlinear optical nanostructure of poly {1-[p-(3’-carboxy-4’-hydroxyphenylazo) benzenesulfonamido]-1, 2-ethandiyl} (PCBS). PVA polymer has been synthesized and converted into nanofibers via electrospinning process. Moreover, PCBS [...]

Microscopic Identification of Micro-Fractures and Deterioration In Arid Environments Of Pro-Oxidant Polyethylene (PE) Specimens Utilizing State of The Art Thermal and Morphological Experimental Protocols

Al-Salem S.M., Al-Hazza A.A., Al-Rowaih A.A., Al-Dhafeeri A.T., Kuwait Institute for Scientific Research, KW

Pro-oxidant filled polyethylene (PE) specimens in standard and internationally accepted dimensions and size, were exposed to arid natural and accelerated weathering conditions. The American Society for Testing and Materials (ASTM) protocols for weathering were followed, [...]

Synthesis of Titanium Nanoparticles with Controlled Size Variation by Physical Vapor Deposition

Alzubi F.G., Kuwait Institute for Scientific Research, KW

In this work, we were able to control the diameter of the formed Ti nanoparticles by varying the deposited film thicknesses to different values 2, 4, 6, 8, and 18 nm. Size, distribution, topography, and [...]

Effect of Big-Cube Zr2Ni on the Absorption and Desorption Kinetics of Nanocrystalline MgH2 Powders

El-Eskandarany M.S., Al-Matrouk H., Al-Duweesh A., Shaban Ehab, Kuwait Institute for Scientific Research, KISR, KW

A new hydrogen storage system of nanocomposite MgH2/10 wt.% big-cube Zr2Ni nanocrystalline powders were synthesized. A -MgH2 phase coexisted with small mole fractions of -MgH2 nanocrystalline ultrafine powders were obtained after reactive ball milling (RBM) [...]

Effect of ZrO2 Additives on the Nanomechanical Properties of Spark Plasma Sintered 93WC/7-xCo/xZrO2-2mol% Y2O3 Powders Prepared by High-Energy Ball Milling

El-Eskandarany M.S., Al-Hazza A., Al-Hajji L., Alduweesh A., Ahmed S., Al-Rowayeh A., Kuwait Institute for Scientific Research, KISR, KW

A high-energy ball milling technique was employed to prepare ultrafine cemented carbide nanocomposite powders with compositions (wt.%) of 93WC/7-xCo/xZrO2-2mol% Y2O3 powders (x=0, 1, 2, 3, 4, 5, 6, 7 wt%). The nanocomposite powders obtained after [...]

Effect of the Consolidation Techniques on the Mechanical Properties of Nanocrystalline Ti55C45 Powders Prepared by Mechanically Induced Self-Propagating Reaction

Sherif El-Eskandarany M., Al-Hazza A., Al-Hajji L., Shaban E., Al-Rowayeh A., Kuwait Institute for Scientific Research, KISR, KW

A single phase of NaCl-type TiC was obtained after 5 h of ball milling. To decrease the powder and grain sizes, the synthesized material was subjected to further ball milling time. The powders obtained after [...]

Effect of length and radius of singlewall carbon nanotube on its mechanical properties

Alzubi F.G., Cosby R., Kuwait Institute for Scientific Research, KW

A first principles atomistic calculations and analysis of Young’s modulus for short arm chair carbon nanotubes with different lengths and radii is]]are reported. The atomic forces and total energies were computed for the carbon nanotubes [...]

Effect of Reactive Ball Milling Time on the Hydrogenation/Dehydrogenation Properties of Nanocomposite MgH2/7TiMn1.5 Powders

Sherif El-Eskandarany M., Al-Matrouk H., Shaban E., Al-Duweesh A., Kuwait Institute for Scientific Research, State of Kuwait, KW

Reactive ball milling (RBM) technique was employed to synthesize ultrafine powders of -MgH2 phase coexisted with small mole fractions of -MgH2 phase. The metal hydride powders were prepared at room temperature under 50 bar of [...]