Assist. Prof. Dr. Fikadu Geldasa | Best Researcher Award

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Assist. Prof. Dr. Fikadu Geldasa | Best Researcher Award

Walter Sisulu University | South Africa

Dr. Fikadu Takele Geldasa is an Assistant Professor of Physics at Walter Sisulu University, South Africa, and Oda Bultum University, Ethiopia. He has published 19 Scopus-indexed research papers, received more than 323 citations, and holds an h-index of 6. He obtained his Ph.D. in Materials Physics from Adama Science and Technology University. His research focuses on experimental and computational studies of functional nanomaterials using density functional theory (DFT) and materials characterization techniques. Dr. Geldasa works on the structural, electronic, and optical properties of doped metal oxides, perovskites, and semiconductor materials for applications in photocatalysis, energy conversion, and environmental remediation. His recent works on doped TiO₂ and α-NiS nanostructures provide insights into bandgap engineering and defect tuning for enhanced visible-light photocatalytic activity. He has published his research in leading journals such as Scientific Reports, Nanomaterials, Materials, and Physica Scripta. His interdisciplinary research integrates theory and experiment to develop advanced materials for renewable energy and sustainable technology. Through his scientific contributions, Dr. Geldasa is establishing himself as a promising researcher in materials physics and computational materials science, contributing significantly to the progress of clean energy and environmental technologies.

Profiles : Scopus | Orcid | Research Gate | Google Scholar

Featured Publications

Geldasa, F. T., Dejene, F. B., Kebede, M. A., Hone, F. G., & Jira, E. T. (2025). Density functional theory study of chlorine, fluorine, nitrogen, and sulfur doped rutile TiO₂ for photocatalytic application. Scientific Reports, 15(1), 3390. https://doi.org/10.1038/s41598-024-84316-0

Geldasa, F. T., & Dejene, F. B. (2025). Transition metal doping effects on the structural, mechanical, electronic, and optical properties of α-NiS for photocatalysis applications via DFT + U insights. Applied Physics A. https://doi.org/10.1007/s00339-025-08942-9

Geldasa, F. T., & Dejene, F. B. (2025). First principles investigation of niobium and carbon-doped titanium dioxide for enhanced visible light photocatalytic activity. ChemistrySelect. https://doi.org/10.1002/slct.202504529

Geldasa, F. T., & Dejene, F. B. (2025). Exploration of vanadium and rhenium co-doped TiO₂ for enhanced photocatalytic performance via first principle density functional theory investigation. Physica Scripta. https://doi.org/10.1088/1402-4896/adf156

Geldasa, F. T., & Dejene, F. B. (2025). Density functional theory based exploration of structural, electronic, mechanical, thermodynamic, and optical properties of α-NiS for CO₂ adsorption. Journal of Physics: Condensed Matter. https://doi.org/10.1088/1361-648X/aded5f

Assist. Prof. Dr. Akeem Adewale | Best Researcher Award

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Assist. Prof. Dr. Akeem Adewale | Best Researcher Award

Ladoke Akintola University of Technology Ogbomoso | Nigeria

Dr. Akeem Adekunle Adewale is a distinguished materials physicist and Senior Lecturer in the Department of Pure and Applied Physics at Ladoke Akintola University of Technology, Ogbomoso, Nigeria. He earned his Ph.D. in Materials Engineering from Universiti Malaysia Perlis, Malaysia, following his M.Sc. and B.Sc. degrees in Physics from the University of Ilorin, Nigeria. With a prolific academic career, Dr. Adewale has authored 25 scientific documents, accumulated over 201 citations, and achieved an h-index of 9. His research focuses on computational materials science, density functional theory (DFT), nanotechnology, and optoelectronic and thermoelectric materials modeling. Dr. Adewale’s studies have significantly contributed to understanding the structural, electronic, optical, and thermoelectric properties of advanced materials such as perovskites, semiconductors, and nanocomposites. His works have been published in reputed journals including Materials Today Communications, Heliyon, Physica Scripta, and Computational Condensed Matter. Prior to his current role, he served as a Lecturer in Physics and Materials Science at Kwara State University, Nigeria. Dr. Adewale continues to advance frontiers in materials modeling for renewable energy and semiconductor technologies. His outstanding contributions to materials research position him as a leading scholar in the field of computational materials science.

Profiles : Scopus | Google Scholar | Research Gate | Orcid

Featured Publications

Adewale, A. A., Chik, A., Adam, T., Yusuff, O. K., Ayinde, S. A., & Sanusi, Y. K. (2021). First principles calculations of structural, electronic, mechanical and thermoelectric properties of cubic ATiO3 (A= Be, Mg, Ca, Sr and Ba) perovskite oxide. Computational Condensed Matter, 28, e00562.

Adewale, A. A., Chik, A., Adam, T., Joshua, T. M., & Durowoju, M. O. (2021). Optoelectronic behavior of ZnS compound and its alloy: A first principle approach. Materials Today Communications, 27, 102077.

Olatomiwa, A. L., Adam, T., Edet, C. O., Adewale, A. A., Chik, A., Mohammed, M., Gopinath, S. C. B., & Hashim, U. (2023). Recent advances in density functional theory approach for optoelectronics properties of graphene. Heliyon, 9(3), e14279.

Sholagberu, A. A., Yahya, W. A., & Adewale, A. A. (2022). Pressure effects on the opto-electronic and mechanical properties of the double perovskite Cs₂AgInCl₆. Physica Scripta, 97(8), 085824.

Adewale, A. A., Chik, A., Zaki, R. M., Che Pa, F., Keat, Y. C., & Jamil, N. H. (2018). Thermoelectric transport properties of SrTiO₃ doped with Pm. Solid State Phenomena, 280, 3–8.

Yahya, W., Yahaya, A. A., Adewale, A. A., Sholagberu, A. A., & Olasunkanmi, N. K. (2023). A DFT study of optoelectronic, elastic and thermo-electric properties of the double perovskites Rb₂SeX₆ (X=Br, Cl). Journal of the Nigerian Society of Physical Sciences, 1418–1418.

Mr. Asif Khan | Best Researcher Award

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Mr. Asif Khan | Best Researcher Award

University of Science and Technology Bannu KPK  | Pakistan

Dr. Asif Nawaz Khan is a Pakistani physicist and lecturer at the University of Science and Technology Bannu (USTB), specializing in computational materials science. He is currently pursuing a Ph.D. in Physics at USTB, after completing an M.Phil. from Gomal University and an M.Sc. from Kohat University. Since 2009, he has been actively involved in teaching, supervising BS and M.Phil students, and guiding research in computational simulations and solar cell device modeling. His research focuses on the design and analysis of lead-free perovskite materials (3D and 2D) and their structural, optical, thermoelectric, elastic, thermodynamic, and phonon properties, along with molecular dynamics studies. He employs advanced simulation tools including WIEN2k, Quantum Espresso, CASTEP, and SCAPS-1D, and applies machine learning techniques for material property prediction. Dr. Khan has co-authored multiple high-impact publications, currently holding an h-index of 3 with 38 citations, reflecting his contributions to clean energy materials and sustainable photovoltaics. His work advances the understanding and development of efficient, stable, and multifunctional energy materials. Overall, Dr. Khan is committed to advancing computational materials research and training the next generation of scientists in energy and optoelectronic applications.

Profile : Google Scholar  

Featured Publications

Khan, A., Khan, N. U., Nawaz, A., Ullah, K., & Manan, A. (2024). A DFT study to explore structural, electronic, optical and mechanical properties of lead-free Na₂MoXO₆ (X= Si, Ge, Sn) double perovskites for photovoltaic and optoelectronic applications. Computational and Theoretical Chemistry, 1240, 114834. https://doi.org/10.1016/j.comptc.2024.114834

Hosen, A., Mousa, A. A., Nemati-Kande, E., Khan, A. N., Abu-Jafar, M. S., … (2025). Systematic computational screening and design of double perovskites Q₂LiMH₆ (Q= K, Rb; M= Ga, In, Tl) for efficient hydrogen storage: A DFT and AIMD approach. Surfaces and Interfaces, 106608. https://doi.org/10.1016/j.surfin.2025.106608

Khan, A. N., Rabhi, S., Jehangir, M. A., Charif, R., Khan, N. U., Begagra, A., … (2025). Evaluating A₂SrGeI₆ (A= K and Rb) lead-free double perovskites: Structural, elastic, and optoelectronic insights for clean energy. Inorganic Chemistry Communications, 174, 113949. https://doi.org/10.1016/j.inoche.2025.113949

Khan, N. U., Ghani, U., Khan, A., Khan, A. N., Ullah, K., Ali, R., & Fadhali, M. M. (2025). Theoretical insight into stabilities and optoelectronic properties of RbZnX₃ (X=Cl, Br) halide perovskites for energy conversion applications. Optical and Quantum Electronics, 57(1), 109. https://doi.org/10.1007/s11082-025-04789-1

Rabhi, S., Khan, A. N., Chinoune, O., Charif, R., Bouri, N., Al-Qaisi, S., … (2025). Insight into NaSiCl₃: A lead-free perovskite for the next generation revealed by DFT and SCAPS-1D. Physical Chemistry Chemical Physics, 27(25), 13490–13507. https://doi.org/10.1039/D5CP02345A