About
Päivikki Repo-Rontu is a researcher at Aalto University, affiliated with the Department of Electronics and Nanoengineering within the School of Electrical Engineering. She serves as Manager of OtaNano, a national research infrastructure for micro- and nanotechnologies. Her academic background includes a Doctoral degree in Engineering and Technology from Aalto University (2016), a Master’s degree from the same institution (2010), and a Bachelor’s degree from Helsinki University of Technology (2008).
- Doctoral Degree, Engineering and Technology, Aalto University (2016)
- Master's Degree, Engineering and Technology, Aalto University (2010)
- Bachelor's Degree, Engineering and Technology, Helsinki University of Technology (2008)
Her research focuses on advanced materials and processes in semiconductor technology, particularly surface passivation, atomic layer deposition (ALD), black silicon, and photodetector design. She investigates methods to enhance optoelectronic device efficiency through nanostructuring and defect passivation, with applications in photovoltaics and sensors. Her work contributes to sustainable technology development and aligns with UN Sustainable Development Goals.
The analysis of her publications reveals a consistent focus on surface engineering of silicon materials, especially using ALD-grown aluminium oxide for passivation. Her research spans from fundamental material science to applied device fabrication, including patented photodetector structures. Key themes include minimizing optical losses, improving surface quality, and characterizing novel crystalline phases in oxidized silicon.
She has actively contributed to the scientific community through conference presentations and collaborative research, including visits to external academic institutions. While no formal awards are listed, her extensive publication and patent record demonstrate significant scientific impact. She has been involved in advising and collaborative research, particularly within the Savin group, though no formal students are listed.
Päivikki Repo-Rontu is a key contributor to the OtaNano research infrastructure and participates in a collaborative research team focused on semiconductor device optimization. Her work integrates experimental fabrication, material characterization, and device-level innovation, supporting both academic and industrial applications in micro- and nanotechnology.
