Institute of Physics, Polish Academy of Sciences | Poland
Dr. Aleksandra Wierzbicka is a highly accomplished physicist and materials science researcher, currently serving as an Assistant Professor at the Institute of Physics of the Polish Academy of Sciences (IFPAN) in Warsaw. With over a decade of expertise in X-ray diffraction, epitaxy techniques, and nanostructure analysis, she is recognized for her contributions to both scientific research and education. Her work bridges fundamental physics and practical applications in nanoelectronics, optoelectronics, and photonics.
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🎓 Early Academic Pursuits
Aleksandra began her academic journey at the University of Warsaw, earning her undergraduate degree in Physics, specializing in Material Physics and Optics. She continued with a Master’s degree in X-ray Structural Research, where she explored mixed semiconductor crystals. Her deep interest in structural studies of materials led her to pursue a PhD at the Institute of Physics (PAS), where she conducted pioneering research on epitaxial lateral overgrowth structures, focusing on stress and defects in semiconductors using X-ray diffraction and topography techniques.
🧪 Professional Endeavors
Since 2010, she has held the position of Assistant Professor at IFPAN, where her role spans scientific research, grant writing, student supervision, and international collaborations. In parallel, she has also contributed to physics education at the Jan Nowak-Jeziorański Community Primary School No. 1 STO, demonstrating her dedication to science communication and youth development.
🔬 Contributions and Research Focus
Dr. Wierzbicka has been at the forefront of innovative epitaxial growth techniques, particularly molecular beam epitaxy (MBE) and liquid-phase epitaxy (LPE). Her work emphasizes the structural characterization of GaN nanowires, core-shell structures, and low-dimensional semiconductor heterostructures. She is also an expert in high-resolution X-ray diffraction and synchrotron-based techniques, contributing to the understanding of lattice disorder, defect distribution, and internal electric fields in complex materials.
🌍 Impact and Influence
Her research has been instrumental in numerous European Union-funded projects, including COST actions, OPUS, SONATA, and NanoBiom, positioning her as a key player in collaborative science. As a project manager and contractor in various high-impact studies, her work has enabled breakthroughs in semiconductor device engineering, sensor technology, and photonics. Her invited talks—such as at CMD 31 in Braga, Portugal further reflect her international recognition.
📊 Academic Citations
Dr. Wierzbicka is the author of 63 peer-reviewed scientific publications, with a citation count exceeding 550 (as per Web of Science). Her ResearcherID (C-8880-2016) and ORCID (0000-0003-1379-5941) profiles showcase her scholarly contributions and visibility in the field of solid-state physics and nanomaterials.
🧠 Research Skills
Aleksandra possesses specialized expertise in:
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High-resolution X-ray diffraction
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Synchrotron radiation techniques
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MBE growth methods
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Defect and stress analysis
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Scientific software such as Origin, Panalytical Epitaxy, VESTA, and WinWulff
Her skills are supported by strong computational abilities and analytical rigor, critical for interpreting complex material behavior.
🧑🏫 Teaching Experience
In addition to her research, Dr. Wierzbicka is a committed educator, engaging both university students and school-aged learners. Her ability to translate complex physical concepts into understandable content makes her an asset in promoting STEM education. She is actively involved in mentoring and curriculum development in physics.
🏆 Awards and Honors
Dr. Wierzbicka received her PhD with honors, and her continuous involvement in competitive grant programs like Opus, Sonata, and PBS demonstrates the trust placed in her by the scientific community. Being selected as manager and principal investigator in prestigious international projects (e.g., ANKA Synchrotron Facility at KIT) is a strong indicator of her recognized scientific leadership.
🌱 Legacy and Future Contributions
Aleksandra Wierzbicka’s career reflects an ongoing commitment to scientific excellence, education, and international cooperation. She is poised to contribute further to the advancement of nanoscale materials for use in next-generation electronics and optics. Her potential lies not only in her scientific output but also in her ability to inspire and mentor future generations of physicists especially young women in STEM. Looking forward, her trajectory is aligned with leading and shaping global research initiatives in epitaxy and semiconductor technology.
Publications Top Notes
📄Structural and optical properties of in situ Eu-doped ZnCdO/ZnMgO superlattices grown by plasma-assisted molecular beam epitaxy
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Authors: Anastasiia Lysak, Aleksandra Wierzbicka, Sergio Magalhaes, Piotr Dłużewski, Rafał Jakieła, Michał Szot, Zeinab Khosravizadeh, Abinash Adhikari, Adrian Kozanecki, Ewa Przeździecka
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Journal: Nanoscale
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Year: 2025
📄Strain distribution in GaN/AlN superlattices grown on AlN/sapphire templates: comparison of X-ray diffraction and photoluminescence studies
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Authors: Aleksandra Wierzbicka, Agata Kaminska, Kamil Sobczak, Dawid Jankowski, Kamil Koronski, Pawel Strak, Marta Sobanska, Zbigniew R. Zytkiewicz
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Journal: Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
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Year: 2025
📄Influence of the Annealing Temperature on the Properties of {ZnO/CdO}30 Superlattices Deposited on c-Plane Al₂O₃ Substrate by MBE
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Authors: Anastasiia Lysak, Aleksandra Wierzbicka, Piotr Dłużewski, Marcin Stachowicz, Jacek Sajkowski, Ewa Przezdziecka
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Journal: Crystals
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Year: 2025
📄 Enhancing GaN Nanowires Performance Through Partial Coverage with Oxide Shells
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Authors: Radoslaw Szymon, Eunika Zielony, Marta Sobanska, Tomasz Stachurski, Anna Reszka, Aleksandra Wierzbicka, Sylwia Gieraltowska, Zbigniew R. Zytkiewicz
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Journal: Small
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Year: 2024
📄 Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties
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Authors: Monika Ozga, Eunika Zielony, Aleksandra Wierzbicka, Anna Wolska, Marcin Klepka, Marek Godlewski, Bogdan J. Kowalski, Bartłomiej S. Witkowski
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Journal: Beilstein Journal of Nanotechnology
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Year: 2024