Mostafa Fedawy
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View article: Designing an SOI Interleaver Using Genetic Algorithm
Designing an SOI Interleaver Using Genetic Algorithm Open
A multi-objective genetic algorithm is tailored to optimize the design of a wavelength interleaver/deinterleaver device. An interleaver combines data streams from two physical channels into one. The deinterleaver does the opposite job. The…
View article: A Machine Learning Approach for Efficient Mach-Zehnder Modulator Design
A Machine Learning Approach for Efficient Mach-Zehnder Modulator Design Open
The advancement of silicon photonics modulators is vital for achieving high-speed optical communications. However, designing optical modulators is a complex and resource-intensive task due to the large number of design parameters. Traditio…
View article: A Genetic‐Algorithm Enhanced Design of a Silicon‐Photonics Wavelength Multiplexer/Demultiplexer Circuit
A Genetic‐Algorithm Enhanced Design of a Silicon‐Photonics Wavelength Multiplexer/Demultiplexer Circuit Open
This paper proposes a novel design for a wavelength Multiplexer/Demultiplexer circuit based on the complementary‐metal‐oxide‐semiconductor (CMOS) platform. The wavelength‐division multiplexing (WDM) specifications for this device include f…
View article: Perovskite Silicon Solar Cell Emulation using Multi-Layer Perceptron Deep Neural Network
Perovskite Silicon Solar Cell Emulation using Multi-Layer Perceptron Deep Neural Network Open
Perovskite silicon solar cells have an unprecedentedly high-power conversion efficiency compared to other solar cell technologies. This manuscript aims to accomplish two specific goals. The first objective is to investigate the impact of p…
View article: A Multi-Objective Genetic Algorithm Approach for Silicon Photonics Design
A Multi-Objective Genetic Algorithm Approach for Silicon Photonics Design Open
A multi-objective genetic algorithm approach is formulated to optimize the design of silicon-photonics complex circuits with contradicting performance metrics and no closed-form expression for the circuit performance. A case study is the i…
View article: Optimization of an Environmentally Sustainable HTL-Free Perovskite Solar Cell using SCAPS-1D
Optimization of an Environmentally Sustainable HTL-Free Perovskite Solar Cell using SCAPS-1D Open
Perovskite solar cells (PSCs) without a hole transport layer (HTL) are proposed in this study as a more cost-effective and efficient alternative to PSCs with an HTL. The active layer of these cells is CH3NH3SnI3. To optimize the performanc…
View article: Design and Performance Optimization of Lead-Free Perovskite Solar Cells with Enhanced Efficiency
Design and Performance Optimization of Lead-Free Perovskite Solar Cells with Enhanced Efficiency Open
In response to the growing demand for renewable energy sources, particularly solar energy, extensive research is being conducted to explore new materials and technologies that can enhance the efficiency and reduce the cost of solar cells.P…
View article: Instant testing and non-contact diagnosis for photovoltaic cells using K-means clustering and associated hyperspectral imaging
Instant testing and non-contact diagnosis for photovoltaic cells using K-means clustering and associated hyperspectral imaging Open
Renewable energy, particularly solar energy, has experienced remarkable growth in recent years. However, the integrity of solar photovoltaic (PV) cells can degrade over time, necessitating non-destructive testing and evaluation (NDT-NDE) f…
View article: A Brief introduction to Memristor Device
A Brief introduction to Memristor Device Open
In this paper, a brief introduction to memristor device will be presented.Since 1971, memristor device invented by Leo Chua which included in the fundamental electrical elements besides resistors, capacitors and inductors.Memristor is cons…
View article: Comprehensive Review on Thin Film Homojunction Solar Cells: Technologies, Progress and Challenges
Comprehensive Review on Thin Film Homojunction Solar Cells: Technologies, Progress and Challenges Open
With the aim of achieving high efficiency, cost-effectiveness, and reliability of solar cells, several technologies have been studied. Recently, emerging materials have appeared to replace Si-based cells, seeking economic fabrication of so…
View article: Simulation of new thin film Zn(O,S)/CIGS solar cell with bandgap grading
Simulation of new thin film Zn(O,S)/CIGS solar cell with bandgap grading Open
Copper-Indium-Gallium-diSelenide (CIGS) thin film solar cell is a promising candidate for energy harvesting because of its high absorption coefficient and low cost compared to silicon-based solar cells. Absorber layer bandgap grading is a …
View article: Investigation of gate leakage current in TFET: A semi-numerical approach
Investigation of gate leakage current in TFET: A semi-numerical approach Open
Tunneling FET (TFET) has been demonstrated as a favorable candidate to replace conventional MOSFETs in low-power applications. However, there are many challenges that should be overcome to efficiently operate the TFET. One of the most limi…
View article: Ultra-wideband CMOS power amplifier for wireless body area network applications: a review
Ultra-wideband CMOS power amplifier for wireless body area network applications: a review Open
A survey on ultra-wideband complementary metal-oxide semiconductor (CMOS) power amplifiers for wireless body area network (WBAN) applications is presented in this paper. Formidable growth in the CMOS integrated circuits technology enhances…
View article: Narrowband Near-Infrared Perovskite/Organic Photodetector: TCAD Numerical Simulation
Narrowband Near-Infrared Perovskite/Organic Photodetector: TCAD Numerical Simulation Open
Narrowband photodetectors (PD) established in the near-infrared (NIR) wavelength range are highly required in a variety of applications including high-quality bioimaging. In this simulation study, we propose a filter-less narrowband PD bas…
View article: Effect of absorber layer bandgap of CIGS-based solar cell with (CdS/ZnS) buffer layer
Effect of absorber layer bandgap of CIGS-based solar cell with (CdS/ZnS) buffer layer Open
This article uses computational models to evaluate the potential of copper-indium-gallium-diselenide (CIGS) thin film solar cells. The use of cadmium sulphide (CdS) renders the solar cell environmentally hazardous. A zinc sulphide (ZnS) th…
View article: Performance Analysis and Simulation of c-Si/SiGe Based Solar Cell
Performance Analysis and Simulation of c-Si/SiGe Based Solar Cell Open
Silicon Germanium (SiGe) solar cells with different bandgaps are used in the fabrication of the crystalline-Si/SiGe (c-Si/SiGe) double-junction cell in order to enhance the performance of the c-Si single devices. The new device is simulate…
View article: Solar cell performance enhancement with optimized CIGS absorber bandgap and buffer layer
Solar cell performance enhancement with optimized CIGS absorber bandgap and buffer layer Open
In the past years, record efficiency of copper-indium-gallium-diselenide (CIGS) based solar cells has improved reaching 22.6%. This result shows that CIGS absorbent is idealistic for thin-film solar cells. The most attractive feature in CI…
View article: Design of a 90 GHz SOI Fin Electro-Optic Modulator for High-Speed Applications
Design of a 90 GHz SOI Fin Electro-Optic Modulator for High-Speed Applications Open
Introducing high speed networks, such as the fifth generation of mobile technology and related applications including the internet of things, creates a pressing demand for hardware infrastructure that provides sufficient bandwidth. Here, s…
View article: Effect of Doping Profile and the Work Function Variation on Performance of Double-gate TFET
Effect of Doping Profile and the Work Function Variation on Performance of Double-gate TFET Open
Tunnel Field Effect Transistor (TFET) can be considered as one of the promising transistors because it can switch ON and OFF at lower voltages than the operation voltage of the metal oxide semiconductor field effect transistor (MOSFET). Th…
View article: Relay Selection Schemes for FSO Communications over Turbulent Channels
Relay Selection Schemes for FSO Communications over Turbulent Channels Open
Free Space Optics (FSO) Communication has attracted the attention of the researchers in the last decade due to its high data rate, security, and low cost. Relay-assisted techniques are used to divide the distance to shorter hops in order t…
View article: Wet chemistry route for the decoration of carbon nanotubes with iron oxide nanoparticles for gas sensing
Wet chemistry route for the decoration of carbon nanotubes with iron oxide nanoparticles for gas sensing Open
In this work, we investigated the parameters for decorating multiwalled carbon nanotubes with iron oxide nanoparticles using a new, inexpensive approach based on wet chemistry. The effect of process parameters such as the solvent used, the…