A5031416495- Semiconductor materials and devices
- Graphene research and applications
- Quantum and electron transport phenomena
- Nanotechnology research and applications
- Advancements in Semiconductor Devices and Circuit Design
- Carbon Nanotubes in Composites
- Quantum-Dot Cellular Automata
- Magnetic properties of thin films
- Molecular Junctions and Nanostructures
- Electromagnetic wave absorption materials
- Surface and Thin Film Phenomena
- Advanced Antenna and Metasurface Technologies
- Graphene and Nanomaterials Applications
- Advanced Memory and Neural Computing
- Nanowire Synthesis and Applications
- Diamond and Carbon-based Materials Research
- Force Microscopy Techniques and Applications
- 2D Materials and Applications
- Metamaterials and Metasurfaces Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Thin-Film Transistor Technologies
- MXene and MAX Phase Materials
- Experimental Learning in Engineering
- Advancements in Battery Materials
- Advanced Sensor and Energy Harvesting Materials
Hong Kong Polytechnic University
2019-2024
Shenzhen MSU-BIT University
2024
National University of Medical Sciences
2023
Military Hospital
2023
University of Engineering and Technology Lahore
2017-2023
Bahria University
2022
Quaid-i-Azam University
2022
University of Okara
2022
COMSATS University Islamabad
2017-2021
Nishtar Medical College and Hospital
2021
Abstract Vigorous development of 5G communication technologies can boost mobile networks yet bring in electromagnetic interferences and safety concerns utilizing electronic devices. Particularly, network not only involve a low‐frequency band n 78 (3.3–3.8 GHz) but also cover multi‐frequency bands 77 (3.3–4.2 79 (4.4–5.0 GHz), displaying multiple radiations. Countless efforts have been devoted to investigating wave (EMW) absorbers with low‐ multi‐band absorption properties. However, terms...
Abstract Multiple relaxation behaviors are promising for broad frequency band and strong electromagnetic wave (EMW) absorption based on polarization‐controlled (EM) attenuation. However, rational selection of materials structure manipulation through tunable substitution or phase control challenging toward optimization EMW absorption. Herein, bi‐metallic organic frameworks (B‐MOFs) with various morphologies employed as absorbers. Remarkably, the polar units can be enhanced by introducing...
Abstract Recently, the design and development of efficient microwave absorbents by facile engineering approaches have attracted much attention. Particularly, some unique structures caused cross‐scale are promising in enhancing absorbing capability toward irradiation. Herein, strategy is implemented to enhance electromagnetic wave absorption performance polymetallic sulfides (PMS). In PMS, dipole polarization unit optimized, distribution electronic states improved doping Ti atoms; Meanwhile,...
We report electronic structure and electric-field modulation calculations in the width direction for armchair graphene nanoribbons (acGNRs) using a semiempirical extended H\"uckel theory. Important band-structure parameters are computed, e.g., effectives masses, velocities, band gaps. For three types of acGNRs, ${p}_{z}$ orbital tight-binding extracted if feasible. Furthermore, effect electric field on acGNRs dispersion is explored. It shown that two semiconducting an external can reduce gap...
Engineering microwave absorption materials with in multiple bands and strong performance the C-band remains challenging to date.
Since lithium sulfur (Li-S) energy storage devices are anticipated to power portable gadgets and electric vehicles owing high density (2600 Wh·kg<sup>–1</sup>); nevertheless, their usefulness is constrained by sluggish reaction kinetics soluble polysulfide (LPS) shuttling effects. High electrically conductive bifunctional electrocatalysts urgently needed for Li-S batteries, high-entropy oxide (HEO) one of the most promising electrocatalysts. In this work, we synthesize titanium-containing...
We report a uniform and low-defect synthesis of bilayer graphene on evaporated polycrystalline nickel films. used atmospheric pressure chemical vapor deposition with ultra-fast substrate cooling after exposure to methane at 1,000°C. The optimized process parameters, i.e., growth time, annealing profile flow rates various gases, are reported. By using Raman spectroscopy mapping, the ratio 2D G peak intensities (I2D/IG) is in range 0.9 1.6 over 96% 200 μm × area. Moreover, average D (ID/IG) about 0.1.
Due to globalization, environment, social, and governance (ESG) issues have gained importance over the last few decades. ESG is a worldwide issue, which clarifies that organizations throughout world are lacking in contribution society, corporate characteristics for sustainable development. The problem of spread all stakeholders needs be addressed. In this regard, rating agencies also close eye on developed methodology score aims provide disclosure metrics which, return, help investors asset...
Psoriasis is chronic autoimmune disease that affects 2–5% of the global population. Fluocinolone acetonide (FLU) and acitretin (ACT) are widely used antipsoriatic drugs belong to BCS classes II IV, respectively. FLU exhibits side effects, such as skin irritation a burning sensation. ACT also shows adverse gingivitis, teratogenic effects xerophthalmia. In present study, topical nanostructured lipid carriers (NLCs) were fabricated reduce enhance therapeutic efficacy. FLU–ACT-coloaded NLCs...
Rapid advances in the engineering application prospects of metal-organic framework (MOF) materials necessitate an urgent in-depth understanding their mechanical properties. This work demonstrates unprecedented recoverable elastic deformation Ni-tetraphenylporphyrins (Ni-TCPP) MOF nanobelts with a tensile strain as high 14%, and projected yield strength-to-Young's modulus ratio exceeding theoretical limit (≈10%) for crystalline materials. Based on first-principles simulations, observed...
Abstract Adhesive bonding is an efficient strategy for fabricating lightweight structural components owing to its superior toughness and fatigue resistance. Major factors affecting the adhesion of various materials encompass elimination impurities, adhesive wettability, surface roughness. This study examines effects roughness curing duration on AL5083 SS304 substrates. Impurities are eliminated from substrates utilizing laboratory-grade acetone, succeeded by pre-treatment with P30, P40, P60...
We theoretically study the electronic band structure of isolated unpaired and paired dangling bonds (DBs), DB wires, clusters on $\mathrm{H}:\mathrm{Si}(001)\text{\ensuremath{-}}(2\ifmmode\times\else\texttimes\fi{}1)$ surface using extended H\"uckel theory report their effect Si gap. show that an introduces a near-midgap state, whereas leads to $\ensuremath{\pi}$ ${\ensuremath{\pi}}^{*}$ states, similar those introduced by unpassivated asymmetric dimer (AD)...
Self-assembled monolayers (SAMs) of either ferrocenecarboxylic acid or 5-(4-Carboxyphenyl)-10,15,20-triphenyl-porphyrin-Co(II) (CoP) with a high- dielectric were integrated into the Flash memory gate stack. The molecular reduction-oxidation (redox) states are used as charge storage nodes to reduce charging energy and window variations. Through program/erase operations over tunneling barriers, device structure also provides unique capability measure redox without strong orbital hybridization...
Using an external electric field, one can modulate the band gap of Bernal stacked bilayer graphene by breaking A– symmetry. We analyze strain effects on using extended Hückel theory and find that reduced interlayer distance results in higher modulation, as expected. Furthermore, above about 2.5 Å distance, is direct, follows a convex relation with field saturates to value determined distance. However, below Å, indirect, trend becomes concave threshold observed, which also depends stacking
We study zigzag graphene nanoribbons with periodic edge roughness and report significant band gap opening. Interestingly, such have a near-midgap state small width. extensively the electronic structure electric-field modulation of conduction/valence bands state. summarize important electronic-structure features like gap, width effective mass. show that by applying an external electric field in direction, varies linearly due to localization, whereas remains almost constant. Additionally, mass...