Emmanuel Adeyefa | Theoretical Physics | Member

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Assoc Prof Dr. Emmanuel Adeyefa | Theoretical Physics | Member

PHD at University of Ilorin, Nigeria

Dr. Emmanuel Oluseye Adeyefa is a distinguished mathematician and academic leader from Nigeria. With a Ph.D. in Mathematics from the University of Ilorin, he currently serves as a Reader at the Department of Mathematics, Federal University Oye-Ekiti. His administrative roles include acting as Head of Department and Postgraduate Coordinator. With a passion for teaching, he has instructed various courses and supervised numerous undergraduate and postgraduate projects. A committed scholar, he actively participates in conferences and workshops, contributing to advancements in mathematics and cryptography. Beyond academia, he engages in community service and enjoys activities such as reading, football, and music.

Professional Profiles:

Education

Ph.D. in Mathematics, University of Ilorin, 2014 M.Sc. in Mathematics, University of Ilorin, 2007 B.Sc. in Mathematics, University of Ilorin, 2003 PGD in Education, Obafemi Awolowo University, 2014

Administrative Experience

Acting Head, Department of Mathematics Postgraduate Coordinator University Examination Committee Member Level Adviser/Coordinator Departmental Seminar Coordinator Staff Secretary Various Committee Memberships and Chairmanships. Federal University Wukari, Taraba State Oduduwa University, Osun State Southern Institute of Innovative Technology (SNIIT Polytechnic), Osun State

Teaching Experience

Various courses in Mathematics including Linear Algebra, Mathematical Packages, Vector and Tensor Analysis, Real Analysis, Mathematical Methods, Analytical Dynamics, Fluid Dynamics, and Numerical Analysis.

Awards

Recipient of various awards including Departmental Best Graduating Student and Best Lecturer of the year.

Research Focus:

Dr. Emmanuel Oluseye Adeyefa’s research focus primarily revolves around the development and application of advanced numerical methods for solving various classes of ordinary and partial differential equations. His work spans topics such as direct integration methods, orthogonal basis function formulations, hybrid block methods, and collocation approaches. Additionally, he explores the use of polynomial and orthogonal basis functions, particularly Chebyshev polynomials, in continuous formulations of numerical solvers. Adeyefa’s contributions bridge mathematical theory with practical applications, showcasing his expertise in computational mathematics and algorithm development, with potential applications in cryptography and queueing systems.

Publications

  1. Error estimation of the integral tau method for fourth order overdetermined ODES, Publication: 2023.
  2. Integral tau Method for Certain Over-determined Fourth-Order Ordinary Differential Equations., Publication: 2023.
  3. A Generalized Series Solution of đť’Źđť’•đť’‰ Order Ordinary Differential Equations, Publication: 2023.
  4. Improved 2-Point Hybrid Block Model for Direct Integration of Third and Fourth-Order Initial Value Problems, Publication: 2023.
  5. Algebraic characterization of Ifa main divination codes, Publication: 2023.
  6. Ninth-order Multistep Collocation Formulas for Solving Models of PDEs Arising in Fluid Dynamics: Design and Implementation Strategies, Publication: 2023.
  7. Hybrid block methods with constructed orthogonal basis for solution of third-order ordinary differential equations, Publication: 2023.
  8. A continuous five-step implicit block unification method for numerical solution of second-order elliptic partial differential equations, Publication: 2023.
  9. Implicit hybrid block methods for solving second, third and fourth orders ordinary differential equations directly, Publication: 2022.
  10. New developed numerical formula for solution of first and higher order ordinary differential equations, Publication: 2022.
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Christian Kenfack Sadem | Condensed Matter Physics | Member

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Assoc Prof Dr. Christian Kenfack Sadem | Condensed Matter Physics | Member

PHD at University of Abomey Calavi, Benin

Christian Kenfack Sadem, an Associate Professor born on July 26, 1983, in Buea, Cameroon, holds Ph.D.s in Physical Oceanography and Condensed Matter Physics. With a diverse teaching background, including roles as a lecturer and visiting lecturer across Cameroon, he currently serves as an Associate Professor at the University of Dschang. Kenfack’s expertise spans research, teaching, and supervision of junior researchers, focusing on condensed matter physics and exciton-polaron dynamics. Recognized for his teaching excellence, he inspires students to pursue research careers. Kenfack is also skilled in data management and scientific software, contributing significantly to climate modeling.

Professional Profiles:

Education

Ph.D. in Physical Oceanography and Applications, University of Abomey Calavi, Benin, May 2021 Ph.D. in Condensed Matter Physics, University of Dschang, Cameroon, November 2011 Masters in Physical Oceanography and Applications, University of Abomey Calavi, Benin, November 2010 M.Sc. in Condensed Matter Physics, University of Dschang, Cameroon, June 2008 B.Sc. in General Physics, University of Ngaoundere, Cameroon, September 2005

Employment History

Associate Professor: University of Dschang, Cameroon (2019 – Present) Lecturer and Visiting Lecturer: Various institutions in Cameroon (2012 – 2019) Visiting Lecturer: National Polytechnic Bambui, Cameroon (2008 – 2009) Visiting Lecturer: Intitut PrivĂ© Polyvalent la Reforme, Cameroon (2007 – 2008)

Teaching Activities

Taught a range of courses including Statistical Physics, Group Theory, General Physics, Electromagnetism, and more

Prizes, Awards, Fellowships

Received various scholarships and fellowships including the Mwalimu Nyerere African Union Scholarship and the DAAD fellowship. Conducted groundbreaking research in the field of condensed matter physics, particularly in the areas of exciton-polaron dynamics and optical properties of transition metal dichalcogenides

Research Focus:

Christian Kenfack Sadem has contributed significantly to various scientific publications, including “Mobility and Decoherence of Bipolaron in Transition Metal Dichalcogenides Pseudodot Quantum Qubit” published in the Iranian Journal of Science. Additionally, he has co-authored articles such as “Enhancement of the group delay in quadratic coupling optomechanical systems subjected to an external force” in Chinese Physics B and “First principle investigation of electronic and optical properties of graphene/h-BN bilayers using Tran-Blaha-modified Becke-Johnson potential” in Optical and Quantum Electronics. His research covers a wide range of topics, including exciton-polaron dynamics, optical properties of graphene, and magnetic barrier effects on transition metal dichalcogenides.

Publications 

  1. Deformation and size effects on electronic properties of toroidal quantum dot in the presence of an off-center donor atom, cited by: 5, Publication date: 2022.
  2. The intensity and direction of the electric field effects on off-center shallow-donor impurity binding energy in wedge-shaped cylindrical quantum dots, cited by: 18, Publication date: 2022.
  3. Magnetic barrier and temperature effects on optical and dynamic properties of exciton-polaron in monolayers transition metal dichalcogenides, cited by: 1, Publication date: 2022.
  4. Impacts of an initial axial force and surface effects on the dynamic characteristics of a bioliquid-filled microtubule in cytosol, Publication date: 2022.
  5. A Ginzburg-Landau approach to field theories for single, isolated zero-dimensional superconductors, Publication date: 2022.
  6. Magnetic barrier and electric field effects on exciton-polaron relaxation and transport properties in transition metal dichalcogenide monolayers, Publication date: 2023.
  7. First principle investigation of electronic and optical properties of graphene/h-BN bilayers using Tran-Blaha-modified Becke-Johnson potential, Publication date: 2023.
  8. Enhancement of the group delay in quadratic coupling optomechanical systems subjected to an external force, Publication date: 2023.
  9. Mobility and Decoherence of Bipolaron in Transition Metal Dichalcogenides Pseudodot Quantum Qubit, Publication date: 2024.

 

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Al-Hattab Mohamed | Physics | Member

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Dr. Al-Hattab Mohamed | Physics | Member

PHD at Sultan Moulay Slimane University, Morocco

Mohamed Al-Hattab is a dedicated researcher specializing in Physics of Materials and Energy. He completed his Ph.D. at Sultan Moulay Slimane University, focusing on the properties of the semiconductor GaSe. With expertise in scanning electron microscopy, X-ray crystallography, and spectroscopy, Mohamed has contributed to various publications in prestigious journals like Solar Energy and Nanoparticle Research. He actively engages in educational activities, supervising students and presenting at international conferences. As a reviewer for prominent journals, Mohamed continues to advance research in his field, affiliated with the Research Laboratory in Physics and Sciences for Engineers at Sultan Moulay Slimane University.

Professional Profiles:

Education

Ph.D. in Physics of Materials and Energies Sultan Moulay Slimane University, Beni Mellal, Morocco (2018 – 2022) Advisor: Khalid Rahmani Dissertation: Study of the structural, electronic, optical, and elastic properties of the lamellar semiconductor (GaSe) Master in Advanced Materials Sultan Moulay Slimane University, Beni Mellal, Morocco (2015 – 2018) Bachelor’s degree in Physical Sciences, Electronics option Cadi Ayyad University, Marrakech, Morocco (2011 – 2015) Advisor: Amal Rajirae Dissertation: Study of the properties of the lamellar material GaSe used as an absorber in photovoltaic cells

Skills

Scanning Electron Microscope X-ray Crystallography UV-Visible Spectroscopy and Raman Spectroscopy Simulation (Biovia Material Studio 2017, SCAPS-1D, MATLAB, Silvako

Research Focus:

Mohamed Al-Hattab is a versatile researcher with a primary focus on materials science and renewable energy technologies. His contributions span various aspects of solar cell design and optimization, including numerical modeling, density functional theory (DFT) investigations, and experimental studies. With expertise in tandem solar cells, perovskite materials, and semiconductor physics, Mohamed’s research aligns with advancing eco-friendly and efficient photovoltaic devices. He collaborates extensively with multidisciplinary teams, emphasizing the integration of theoretical insights with practical applications. Through his work, Mohamed strives to enhance the performance and sustainability of solar energy technologies for a greener future. Physics

Publications 

  1. Experimental and numerical study of the CIGS/CdS heterojunction solar cell,  Publication date: 2023.
  2. Novel Simulation and Efficiency Enhancement of Eco-friendly Cu2FeSnS4/c-Silicon Tandem Solar Device, cited by: 4, Publication date: 2023.
  3. Ab Initio Investigation for Solar Technology on the Optical and Electronic Properties of Double Perovskites Cs2AgBiX6(X=Cl, Br, I), Publication date: 2023.
  4. Thermodynamic, optical, and morphological studies of the Cs2AgBiX6 double perovskites (X = Cl, Br, and I): Insights from DFT study, cited by: 16, Publication date: 2023.
  5. Ag2BeSnX4(S, Se,Te)-based kesterite solar cell modeling: A DFT investigation and Scaps-1 danalysis,Publication date: 2023.
  6. Numerical Simulation of CdS/GaSe Solar Cell Using SCAPs Simulation Software, Publication date: 2022.
  7. Density Functional Theory Study on the Electronic and Optical Properties of Graphene, Single-Walled Carbon Nanotube and C60, Publication date: 2022.
  8. Quantum confinement in GaN/AlInN asymmetric quantum wells for terahertz emission and field of optical fiber telecommunications, Publication date: 2024.
  9. Cu2BaSnS4/Cu2FeSnS4 combination for a good light absorption in thin-film solar cells—a numerical model, Publication date: 2024.
  10. Performance assessment of an eco-friendly tandem solar cell based on double perovskite Cs2AgBiBr6, Publication date: 2024.

 

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