A5004959403- Carbon Nanotubes in Composites
- Graphene research and applications
- Nanowire Synthesis and Applications
- Advancements in Battery Materials
- Power System Optimization and Stability
- Diamond and Carbon-based Materials Research
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- Ion-surface interactions and analysis
- Optimal Power Flow Distribution
- Power Quality and Harmonics
- Robotic Path Planning Algorithms
- Electrohydrodynamics and Fluid Dynamics
- Semiconductor materials and interfaces
- Advanced Electron Microscopy Techniques and Applications
- Power System Reliability and Maintenance
- Boron and Carbon Nanomaterials Research
- Organic Electronics and Photovoltaics
- Power Transformer Diagnostics and Insulation
- Power Systems Fault Detection
- Nanopore and Nanochannel Transport Studies
- Greenhouse Technology and Climate Control
- solar cell performance optimization
- Reinforcement Learning in Robotics
- Luminescence Properties of Advanced Materials
Al-Farahidi University
2024
University of Eastern Finland
2022-2023
Finland University
2022
Aalto University
2017-2021
COMSATS University Islamabad
2013
National University of Malaysia
2005
University of Faisalabad
2003
University of Dhaka
2000
Manufacturing of high performance transparent conducting electrodes from very long and a proportion individual SWCNTs using the ethylene floating catalyst CVD process.
Abstract The floating catalyst chemical vapor deposition (FCCVD) method for producing single‐walled carbon nanotubes (SWNTs) has demonstrated great potential in transparent conductive film (TCF) application. In FCCVD, reducing the concentration of (CNTs) is a well‐agreed improving conductivity SWNT TCF, achieved by thinner and longer CNT bundles. However, this decreases yield dramatically, which persisted throughout TCF development. Here, production large‐diameter double‐walled (DWNT) TCFs...
We report the high yield production of highly conductive and transparent single-walled carbon nanotube films from ethanol by FCCVD method.
Abstract Single-walled carbon nanotube (SWCNT) transparent conducting films (TCFs) are attracting increasing attention due to their exceptional optoelectronic properties. Toluene is a proposed source for SWCNT synthesis, but the growth parameters of SWCNTs and TCF performance (i.e., sheet resistance versus transmittance) have been insufficiently evaluated. Here, we first time reported systematic study fabrication high-performance TCFs using toluene alone as source. The mechanisms behind each...
Abstract Optimized geometry of single‐walled carbon nanotubes (SWCNTs) is vital to high‐performance transparent conductive films (TCFs). Herein, the SWCNTs, i.e., tube diameter, bundle length, and are successfully tuned by introducing dioxide (CO 2 ) into floating catalyst chemical vapor deposition (FC‐CVD), where monoxide (CO) used as a source ferrocene precursor. Both diameter length increase with an increment CO concentration, yield SWCNTs can be significantly promoted appropriate amount...
The chemical and electrical properties of single-walled carbon nanotubes (SWCNTs) graphene can be modified by the presence covalently bound impurities. Although this achieved introducing additives during synthesis, it often hinders growth leads to limited crystallite size quality. Here, through simultaneous formation vacancies with low-energy argon plasma thermal activation adatom diffusion laser irradiation, silicon impurities are incorporated into lattice both materials. After an exposure...
Abstract Although single‐wall carbon nanotubes (SWCNTs) exhibit various colors in suspension, directly synthesized SWCNT films usually appear black. Recently, a unique one‐step method for fabricating green and brown has been developed. Such remarkable progress, however, brought up several new questions. The coloration mechanism, potentially achievable colors, color controllability of SWCNTs are unknown. Here, quantitative model is reported that can predict the specific unambiguously identify...
Structure-controlled growth of single-walled carbon nanotubes by floating catalyst CVD.
Molecular self-assembly due to chemical interactions is the basis of bottom-up nanofabrication, whereas weaker intermolecular forces dominate on scale macromolecules. Recent advances in synthesis and characterization have brought increasing attention two- mixed-dimensional heterostructures, it has been recognized that van der Waals (vdW) within structure may a significant impact their morphology. Here, we suspend single-walled carbon nanotubes (SWCNTs) graphene create model system for study...
The consequences of the recent breakthroughs in control systems and robotics span a wide range industries. study also discusses about possibilities challenges future research these areas, with focus on developing smarter, more resilient robotic systems. Research technological advancements over last several decades have allowed fields to make tremendous progress. This article aims give comprehensive review current developments fields. By outlining opportunities for research. Autonomous...
Face recognition play a vital role in variety of applications from biometrics, surveillance, security, identification to the authentication. In this paper we design and implement smart security system for restricted area where access is limited people whose faces are available training database. First going detect face by detecting human motion. Then performed determine authority person enter sensitive area. At same time, track coordinate detected Failing recognize finally passes estimated...
This study describes the derivation of an analytical model and simulation for unified series-shunt compensator (USSC) investigating power quality in distribution system. The USSC comprises two 12-pulse inverters which were connected series shunt with A generalized sinusoidal pulse width modulation (SPWM) switching technique was developed proposed controller fast control action USSC. Simulations carried out using PSCAD/EMTDC electromagnetic transient programs to examine performance model....
Abstract The recent discovery that impurity atoms in crystals can be manipulated with focused electron irradiation has opened novel perspectives for top‐down atomic engineering. These achievements have been enabled by advances not only optics and microscope stability but also the preparation of suitable materials elements incorporated via ion electron‐beam or chemical means. Here it is shown silicon heteroatoms introduced plasma into lattice single‐walled carbon nanotubes (SWCNTs) using a...
Abstract Graphene, carbon nanotubes (CNTs) and fullerenes are the basic set of low‐dimensional allotropes. The latter two arise from former by selective removal addition atoms. Nevertheless, given their morphological disparities, production each is typically devised entirely different starting points. Here, it demonstrated that all three allotropes can nucleate (pseudo‐)spherical, nanometer‐sized transition metal clusters in a gas‐suspension when chemical conditions favorable. experimental...
Abstract In this work, a fast approach for the fabrication of hundreds ultraclean field‐effect transistors (FETs) is introduced, using single‐walled carbon nanotubes (SWCNTs). The synthesis nanomaterial performed by floating‐catalyst chemical vapor deposition, which employed to fabricate high‐performance thin‐film transistors. Combined with palladium metal bottom contacts, transport properties individual SWCNTs are directly unveiled. resulting SWCNT‐based FETs exhibit mean mobility, 3.3...
We report the direct and dry deposition of transparent conducting films (TCFs) aerosol-synthesized single-walled carbon nanotubes (SWNTs) using a thermophoretic precipitator (TP) designed for uniform efficient nanomaterials on 50 mm wafers or similarly sized polymer substrates. The optical electrical performance fabricated TCFs match surpass published results achieved filter-based collection SWNTs, with sheet resistances 60 Ω/sq. at 87.8% transmittance 199 96% flexible substrates are...
Graphene and graphite are black pure diamonds colorless to the human eye; however, single-wall carbon nanotubes colorful. In article number 2006395, Esko I. Kauppinen co-workers explain experimentally how these stable colors of form, also demonstrate their brilliance range. It is surprising that molecules carbon, like gems, can exhibit a full spectrum strong vivid colors.
Recent times have overseen exceedingly high crime rates, and the appalling situation demands additional personal security measures. In light of new advancements in technology, demand for wireless systems has witnessed tremendous affinity, with major domains rapidly attempting to adopt technique into their custom applications. Security is one such domain where technology thescope achieve numerous practical instance, this study deploys WiFi protocol over an intruder detection system using a TI...
Due to the robot's requirement make decisions in a dynamic and complicated environment, autonomous robot navigation is difficult challenge. Positive outcomes have been achieved when using reinforcement learning (RL) instruct robots navigation. However, standard RL algorithms struggle with complex decision-making tasks high-dimensional sensor inputs. its ability handle issues learn directly from inputs, deep (DRL) has emerged as solution these constraints. This paper provides an overview of...
In floating catalyst chemical vapor deposition for single-walled carbon nanotube (SWCNT) growth, employing certain amount of CO2 can obtain SWCNTs with larger diameter, longer length and smaller bundle diameter. The corresponding SWCNT transparent thin films display excellent conductivity due to the optimized geometry. More details be found in article number 1801209 by Yongping Liao, Qiang Zhang, Esko I. Kauppinen, co-workers.
Power system deregulation has increased the need for determination of transmission reliability margin (TRM) which is amount transfer capability reserved to ensure that network secure under a reasonable range uncertainty in operating conditions. This paper presents computationally effective method determining TRM based on first order sensitivity and certain probabilities. The determines linearly changes with respect standard deviation line reactances. determined by considering effect maximum...