I hold the position of assistant professor within the Department of Mechanical Engineering at Eastern Mediterranean University.
EDUCATION
I received my Ph.D. degree from the Department of Electronic Engineering of Tsinghua University.
RESEARCH, TEACHING, or OTHER INTERESTS
Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment, Aerospace Engineering, Mechanical Engineering
26
Scopus Publications
498
Scholar Citations
11
Scholar h-index
14
Scholar i10-index
Scopus Publications
An in-depth analysis of rotational and non-rotational piezoelectric energy harvesting beams: A comprehensive review Asli Tabak, Ahmed Salih, Babak Safaei, Omid Shekoofa, Saeid Sahmani, Kamila Kotrasova, Eva Kormanikova, Emmanuel Chukwueloka Onyibo Nanotechnology Reviews, 2025 Due to the urgent need for sustainable energy around the world, piezoelectric energy harvesting (PEH) has become very popular due to its capability to harvest electrical energy from ambient mechanical energy. From numerous possible configurations, cantilever-based beams have become very popular among researchers due to their adaptability and structural simplicity. Recently, rotational piezoelectric energy harvesters have gained prominence due to their ability in continuous energy capture from sources such as wind, human motion, and rotating machinery. The aim is to provide more clarity on the underlying concept of energy harvesting models by carefully compiling comprehensive information. In summary, this research performs a comprehensive review on the latest progress in research on rotating and non-rotating PEHs, considering their research background, excitation principles, harvester modes, etc. After a comprehensive investigation, it was found that structures using rotational motions outperformed available energy harvesting designs in such systems.
Systematic literature review on the design, efficiency and fabrication of wind turbine blades Hussam Almalki, Babak Safaei, Mohammad Karimzadeh Kolamroudi, Saeid Sahmani, Samaneh Arman, Omid Shekoofa International Journal of Ambient Energy, 2024 As one of the most prominent types of renewable energy, wind energy has become increasingly popular around the world. Investment in this sector is highly reasonable and sustainable since it can provide a continuous and stable energy source to produce limitless electricity with no air pollutants and greenhouse gas emissions. Wind turbines use an electromechanical mechanism based on generator rotation to convert wind kinetic energy to electricity. The current study investigated various wind turbine (WT) types, focusing on their blade materials, applications, characteristics and manufacturing processes. In addition, in this research, relevant literature were reviewed, and progresses in the blades of wind turbines in different sectors were comprehensively assessed through the classification of previous studies and combining numerical and analytical studies. This overview explores various types of WT blades and the factors that influence their efficiency, which can assist in enhancing WT design and performance. The findings of this review suggest that one developed turbine (which boasts the advantages of being lightweight, highly efficient and low-noise) with a greater capacity can replace several smaller turbines.
Investigation of microcrystalline silicon thin film fabricated by magnetron sputtering and copper-induced crystallization for photovoltaic applications Omid Shekoofa, Jian Wang, Dejie Li, Yi Luo Applied Sciences Switzerland, 2020 Microcrystalline silicon, which is widely used in the microelectronics industry, is usually fabricated by chemical vapor deposition techniques. In recent years, magnetron sputtering has been considered as an alternative because it is a simpler, cheaper and more eco-friendly technique. The big drawback of this technique, however, is the need to recrystallize the as-deposited amorphous silicon, which can be done by metal-induced crystallization. Among the different suitable metals, copper has not been extensively investigated for this purpose. Furthermore, the applicability of the microcrystalline film prepared by this method has not been evaluated for photovoltaic device fabrication. Therefore, this paper reports the fabrication of p-type microcrystalline silicon thin film by magnetron sputtering and copper-induced crystallization techniques, and evaluates its appropriateness for solar cell fabrication. In the first step, 60 nm of silicon followed by 10 nm of copper were deposited on n-type silicon wafer and glass substrates, both by the magnetron sputtering technique. Then, the as-deposited samples were annealed at temperatures from 450 °C to 950 °C. The crystal properties of the resulting films were characterized by Raman and X-ray diffraction spectroscopies and optical and secondary emission microscopies, while their electrical characteristics were determined by Hall-effect, J-V curve and external quantum efficiency measurements. These characterizations confirmed the formation of a layer of microcrystalline silicon mostly in the <111> direction with a crystallization ratio of 93% and a largest grain size of 20 nm. The hole concentration and mobility of the fabricated p-type microcrystalline silicon layer were about 1017~1019 cm−3 and 8 cm2/V.s, respectively. By using the fabricated film as the emitter layer of a p-n junction solar cell, a good rectification ratio of 4100 and reverse saturation current density of 85 nA.cm−2 were measured under dark conditions. The highest photovoltaic conversion efficiency, i.e., 2.6%, with an open-circuit voltage of 440 mV and short-circuit current density of 16.7 mA/cm2, were measured under AM1.5G irradiance. These results indicate that microcrystalline silicon created by magnetron sputtering and copper-induced crystallization has considerable potential for photovoltaic device fabrication.
Efficient design methodology for sandwich radome panels: A C-band design example Farid Nazari, Mehdi Taherkhani, Majid Mokhtari, Hadi Aliakbarian, Omid Shekoofa Iet Science Measurement and Technology, 2020 In this study, a multidisciplinary design procedure for sandwich radomes is presented. This methodology is composed of two parallel paths which are related to each other, one for electromagnetic behaviour and the other for its mechanical properties. The electromagnetic performance and mechanical properties are often mutually related resulting in a parameter selection compromise between them. The presented methodology is applied on an A type sandwich panel for C-band weather applications. It is composed of primary electromagnetic and mechanical designs, dielectric constant measurement, and electromagnetic and mechanical optimisations. Mechanical design of the sample panels according to survival wind loading of 220 km/h is done numerically and experimentally. Pressure distribution on the radome structure caused by the wind load is calculated numerically. The critical buckling load (120 N) is reported according to ASTM C364 edge wised compression standard test. A sample A-type sandwich panel with the respective thicknesses of 13.2 and 0.6 mm for its core and face sheets, respectively, is fabricated and tested. The dielectric constants of each are measured by using two methods and the results, which are in agreement in both methods, are ∼1.05 and 3.3, respectively. The insertion loss of the fabricated panel is lower than 0.2 dB over the entire desired band.
TDMA based numerical approach on modeling of charge carrier transport and ion vacancy motion in perovskite solar cells Daniyal Khosh Maram, Hamed Abnavi, Hamidreza Habibiyan, Hassan Ghafoorifard, Omid Shekoofa 2020 28th Iranian Conference on Electrical Engineering Icee 2020, 2020 An important tool for explaining the hysteretic behavior in movement of electronic and ionic charges is drift-diffusion model. Adding numerical methods to these models in realistic operation situations is challenging due to the fact that some parameters have extreme values. We present a time scale dimensionless model that considers charge carrier motion and ion migration in a perovskite solar cell. The proposed model provides high accuracy accompanied by the use of realistic parameters. In order to solve matrix and equations, tridiagonal matrix algorithm (TDMA) method is exploited. Electric potential, density of ion vacancy migration, hole and electron concentration characteristics are calculated and illustrated in transient time scale. Besides, the mentioned characteristics are illustrated with different feasible built-in potential. This approach gives insight into device physics, charge transport model, ion migration and hysteresis phenomena.
A waveguide switch based on contactless gap waveguide technology Jalaledin Tayebpour, Behzad Ahmadi, Mojtaba Fallahzadeh, Omid Shekoofa, Abdorreza Torabi IEEE Microwave and Wireless Components Letters, 2019 A novel dual-pole dual-throw (DPDT) waveguide switch is proposed for high-power and low-loss applications. The proposed DPDT was designed based on the contactless properties of the gap waveguide technologies in the Ku frequency band. The DPDT was composed of two concentric contactless cylinders. Standard rectangular waveguide ports (WR 75) and waveguide paths are machined in the middle of these cylinders. The rotational movement of the inner cylinder is realized using two bearings in the top and bottom of the DPDT. The proposed structure is fabricated and the measured results are in good agreement with the simulated ones. The measured insertion loss and return loss for the aligned ports are better than 0.1 and 25 dB in the frequency band ranging from 11 to 13.5 GHz, respectively, and the measured isolation between two adjacent ports is better than 60 dB.
An in-depth analysis of rotational and non-rotational piezoelectric energy harvesting beams: A comprehensive review A Tabak, A Salih, B Safaei, O Shekoofa, S Sahmani, K Kotrasova, ... Nanotechnology Reviews 14 (1), 20250193 , 2025 2025 Citations: 4
Systematic literature review on the design, efficiency and fabrication of wind turbine blades H Almalki, B Safaei, M Karimzadeh Kolamroudi, S Sahmani, S Arman, ... International Journal of Ambient Energy 45 (1), 2374057 , 2024 2024 Citations: 10
Impact Analysis of COVID-19 on the Mechatronics Engineering Program at Eastern Mediterranean University: A Case Study O Shekoofa, Q Zeeshan, M Özdenefe, A Gazioğlu Preprint , 2024 2024
Fabrication of n-type nanocrystalline silicon thin-film by magnetron sputtering and antimony induced crystallization O Shekoofa, J Wang, D Li Archives of Advanced Engineering Science 2 (2), 71-78 , 2024 2024 Citations: 15
Effect of geomagnetic storms on a power network at mid latitudes S Taran, N Alipour, K Rokni, SH Hosseini, O Shekoofa, H Safari Advances in Space Research 71 (12), 5453-5465 , 2023 2023 Citations: 21
System-level evaluation of the operation of different solar array structures for various cubesat configurations O Shekoofa, F Bagheroskouei, R Amjadifard Journal of Space Science and Technology 15 (3), 93-108 , 2022 2022 Citations: 1
Thermal and Electrical Performance Modeling of a Solar Cell with and without a Concentrator under Different Environmental Conditions Z Ashrafi Peyman, H Ghafoorifard, H Habibiyan, O Shekoofa, A Jafargholi Journal of Iranian Association of Electrical and Electronics Engineers 19 (2 … , 2022 2022
Design, implementation and test of a space qualified dosimeter for total ionizing dose measurement R Amjadifard, F Bagheroskouei, O Shekoofa Journal of Nuclear Science, Engineering and Technology (JONSAT) 43 (1), 1-9 , 2022 2022
Toward the Establishment of a National Center for Space Weather Services: Vision, Mission and Organization O Shekoofa, M Khoshsima, S Ghazanfarinia, F Bagheroskouei Space Science, Technology and Applications 1 (2), 34-48 , 2022 2022 Citations: 3
A modeling study on utilizing ultra-thin inorganic HTLs in inverted p–n homojunction perovskite solar cells DK Maram, M Haghighi, O Shekoofa, H Habibiyan, H Ghafoorifard Solar Energy 213, 1-12 , 2021 2021 Citations: 58
Investigation of microcrystalline silicon thin film fabricated by magnetron sputtering and copper-induced crystallization for photovoltaic applications O Shekoofa, J Wang, D Li, Y Luo Applied Sciences 10 (18), 6320 , 2020 2020 Citations: 9
Efficient design methodology for sandwich radome panels: a C‐band design example F Nazari, M Taherkhani, M Mokhtari, H Aliakbarian, O Shekoofa IET Science, Measurement & Technology 14 (7), 808-816 , 2020 2020 Citations: 15
TDMA based numerical approach on modeling of charge carrier transport and ion vacancy motion in perovskite solar cells DK Maram, H Abnavi, H Habibiyan, H Ghafoorifard, O Shekoofa 2020 28th Iranian Conference on Electrical Engineering (ICEE), 1-7 , 2020 2020 Citations: 12
A waveguide switch based on contactless gap waveguide technology J Tayebpour, B Ahmadi, M Fallahzadeh, O Shekoofa, A Torabi IEEE Microwave and Wireless Components Letters 29 (12), 771-774 , 2019 2019 Citations: 43
A hybrid model predictive and fuzzy logic based control method for state of power estimation of series-connected Lithium-ion batteries in HEVs MJ Esfandyari, MRH Yazdi, V Esfahanian, M Masih-Tehrani, H Nehzati, ... Journal of Energy Storage 24, 100758 , 2019 2019 Citations: 82
A new approach to consider the influence of aging state on Lithium-ion battery state of power estimation for hybrid electric vehicle MJ Esfandyari, V Esfahanian, MRH Yazdi, H Nehzati, O Shekoofa Energy 176, 505-520 , 2019 2019 Citations: 72
Analysis of optimum copper oxide hole transporting layer for perovskite solar cells DK Maram, H Habibiyan, H Ghafoorifard, O Shekoofa 2019 27th Iranian Conference on Electrical Engineering (ICEE), 214-219 , 2019 2019 Citations: 11
Nano-crystalline thin films fabricated by Si-Al co-sputtering and metal induced crystallization for photovoltaic applications Omid Shekoofa, Jian Wang, Dejie Li, Yi Luo, Changzheng Sun, Zhibiao Hao ... Solar Energy 173, 539-550 , 2018 2018 Citations: 8
Fabrication of P-type microcrystalline silicon thin film by magnetron sputtering and copper induced crystallization O Shekoofa, J Wang Electrical Engineering (ICEE), Iranian Conference on, 289-293 , 2018 2018 Citations: 2
P-silicon thin film fabricated by magnetron sputtering and aluminium induced crystallization for Schottky silicon solar cells O Shekoofa, J Wang, D Li, Y Luo, C Sun, Z Hao, Y Han, B Xiong, L Wang, ... Materials Science in Semiconductor Processing 71, 366-373 , 2017 2017 Citations: 10
MOST CITED SCHOLAR PUBLICATIONS
A hybrid model predictive and fuzzy logic based control method for state of power estimation of series-connected Lithium-ion batteries in HEVs MJ Esfandyari, MRH Yazdi, V Esfahanian, M Masih-Tehrani, H Nehzati, ... Journal of Energy Storage 24, 100758 , 2019 2019 Citations: 82
A new approach to consider the influence of aging state on Lithium-ion battery state of power estimation for hybrid electric vehicle MJ Esfandyari, V Esfahanian, MRH Yazdi, H Nehzati, O Shekoofa Energy 176, 505-520 , 2019 2019 Citations: 72
A modeling study on utilizing ultra-thin inorganic HTLs in inverted p–n homojunction perovskite solar cells DK Maram, M Haghighi, O Shekoofa, H Habibiyan, H Ghafoorifard Solar Energy 213, 1-12 , 2021 2021 Citations: 58
A waveguide switch based on contactless gap waveguide technology J Tayebpour, B Ahmadi, M Fallahzadeh, O Shekoofa, A Torabi IEEE Microwave and Wireless Components Letters 29 (12), 771-774 , 2019 2019 Citations: 43
Comparing the topologies of satellite electrical power subsystem based on system level specifications O Shekoofa, E Kosari 2013 6th International Conference on Recent Advances in Space Technologies … , 2013 2013 Citations: 28
Analysis of residual stress for mismatch metal–glass seals in solar evacuated tubes O Shekoofa, J Wang, J Qi, J Zhang, Z Yin Solar energy materials and solar cells 128, 421-426 , 2014 2014 Citations: 27
Modelling of silicon solar panel by matlab/simulink and evaluating the importance of its parameters in a space application O Shekoofa, M Taherbaneh 2007 3rd International Conference on Recent Advances in Space Technologies … , 2007 2007 Citations: 24
Effect of geomagnetic storms on a power network at mid latitudes S Taran, N Alipour, K Rokni, SH Hosseini, O Shekoofa, H Safari Advances in Space Research 71 (12), 5453-5465 , 2023 2023 Citations: 21
Fabrication of n-type nanocrystalline silicon thin-film by magnetron sputtering and antimony induced crystallization O Shekoofa, J Wang, D Li Archives of Advanced Engineering Science 2 (2), 71-78 , 2024 2024 Citations: 15
Efficient design methodology for sandwich radome panels: a C‐band design example F Nazari, M Taherkhani, M Mokhtari, H Aliakbarian, O Shekoofa IET Science, Measurement & Technology 14 (7), 808-816 , 2020 2020 Citations: 15
TDMA based numerical approach on modeling of charge carrier transport and ion vacancy motion in perovskite solar cells DK Maram, H Abnavi, H Habibiyan, H Ghafoorifard, O Shekoofa 2020 28th Iranian Conference on Electrical Engineering (ICEE), 1-7 , 2020 2020 Citations: 12
Analysis of optimum copper oxide hole transporting layer for perovskite solar cells DK Maram, H Habibiyan, H Ghafoorifard, O Shekoofa 2019 27th Iranian Conference on Electrical Engineering (ICEE), 214-219 , 2019 2019 Citations: 11
Systematic literature review on the design, efficiency and fabrication of wind turbine blades H Almalki, B Safaei, M Karimzadeh Kolamroudi, S Sahmani, S Arman, ... International Journal of Ambient Energy 45 (1), 2374057 , 2024 2024 Citations: 10
P-silicon thin film fabricated by magnetron sputtering and aluminium induced crystallization for Schottky silicon solar cells O Shekoofa, J Wang, D Li, Y Luo, C Sun, Z Hao, Y Han, B Xiong, L Wang, ... Materials Science in Semiconductor Processing 71, 366-373 , 2017 2017 Citations: 10
Investigation of microcrystalline silicon thin film fabricated by magnetron sputtering and copper-induced crystallization for photovoltaic applications O Shekoofa, J Wang, D Li, Y Luo Applied Sciences 10 (18), 6320 , 2020 2020 Citations: 9
Nano-crystalline thin films fabricated by Si-Al co-sputtering and metal induced crystallization for photovoltaic applications Omid Shekoofa, Jian Wang, Dejie Li, Yi Luo, Changzheng Sun, Zhibiao Hao ... Solar Energy 173, 539-550 , 2018 2018 Citations: 8
Design criteria for electrical power subsystem's topology selection O Shekoofa, S Karbasian 2013 6th International Conference on Recent Advances in Space Technologies … , 2013 2013 Citations: 7
Power sources sizing in electrical power subsystem design based on orbit parameters change in LEO satellites O Shekoofa, M Taherbaneh 2009 4th International Conference on Recent Advances in Space Technologies … , 2009 2009 Citations: 7
Multi-diode modeling of multi-junction solar cells O Shekoofa, J Wang Electrical Engineering (ICEE), 2015 23rd Iranian Conference on, 1164 - 1168 , 2015 2015 Citations: 6
Improving the EGSE of power subsystem by design and development of a battery emulator for space applications O Shekoofa, N Pouryaie, K Sohrabzadeh, M Rezvani International Conference on Recent Advances in Space Technologies, 761-766 , 2009 2009 Citations: 5
