Mr. Ahmed Issa Alnahhal | Engineering | Research Excellence Award

Budapest University of Technology and Economics | Hungary

Mr. Ahmed Issa Alnahhal is an Electrical Engineer and emerging scholar specializing in advanced photovoltaic technologies, hybrid renewable energy systems, and semiconductor device fabrication. With more than ten years of combined academic, research, and engineering experience, he has developed strong interdisciplinary expertise spanning cleanroom fabrication processes, semiconductor device physics, thin-film characterization, and photovoltaic system modelling. He is currently pursuing his PhD in Electrical Engineering at Budapest University of Technology and Economics, Hungary, where his research focuses on advanced Hybrid Photovoltaic–Thermoelectric Generator (PV-TEG) systems and Perovskite/Si tandem solar cells. His work includes simulation, optimization, loss analysis, and experimental fabrication of next-generation energy harvesting systems. Ahmed has authored multiple peer-reviewed journal articles and conference papers in top-tier platforms, including IEEE Transactions on Components, Packaging and Manufacturing Technology, Advanced Theory and Simulation, and Energy Conversion and Management X. His key contributions include extending the single-diode solar cell model using spectral sensitivity, analyzing spectrum-splitting photovoltaic–thermoelectric architectures, and developing mathematical models for hybrid and tandem photovoltaic systems. His publications have been presented at prestigious international conferences such as CANDO-EPE, THERMINIC, and IWTPV, reflecting international relevance and scientific rigor. His academic engagement includes teaching courses in semiconductor device physics, advanced solar cell technologies, and microelectronics. Professionally, he brings extensive experience in PCB design, electronics testing, laboratory coordination, and system-level integration. Ahmed has participated in specialized technical programs hosted by Infineon Technologies, Czech Technical University, and Warsaw University of Technology, strengthening his global research footprint and industrial alignment. Driven by sustainability and energy security challenges, his research aims to improve the efficiency and accessibility of solar energy systems, contributing to long-term environmental and industrial impact. Through collaboration, innovation, and practical engineering problem-solving, Ahmed continues advancing the frontier of high-efficiency solar energy conversion technologies.

Profiles: Scopus | ORCID | Google Scholar

Featured Publications

Alnahhal, A. I., Halal, A., & Plesz, B. (2022). Thermal-electrical model of concentrated photovoltaic-thermoelectric generator combined system for energy generation. Proceedings of the International Workshop on Thermal Investigations of Integrated Circuits and Systems.

Alnahhal, A. I., Halal, A., & Plesz, B. (2022). Temperature-dependent performance of concentrated monocrystalline silicon solar cell. Proceedings of the International Scientific Conference on Electric Power Engineering.

Halal, A., Alnahhal, A. I., & Plesz, B. (2022). Performance analysis of perovskite solar cell by considering temperature effect on physical parameters of the absorber layer. Proceedings of the International Workshop on Thermal Investigations of Integrated Circuits and Systems.

Halal, A., Alnahhal, A. I., & Plesz, B. (2022). Numerical simulation and design optimization of highly efficient lead-free perovskite/c-Si tandem solar cell. Proceedings of the International Scientific Conference on Electric Power Engineering.

Halal, A., Alnahhal, A. I., & Plesz, B. (2022). Numerical simulation-based physical parameter analysis of perovskite/c-Si tandem photovoltaic cells. Proceedings of the International Scientific Conference on Electric Power Engineering.