Department of Electronics and Nanoengineering

Electron Physics

The Electron Physics group is part of the Department of Electronics and Nanoengineering, Aalto University. Our research and education is focused on semiconductor materials and device physics. Our interests cover the whole scientific spectrum from fundamental physical phenomena to the search for cutting-edge applications in collaboration with leading industries. The current research activities include silicon-based photovoltaics and photodetectors, advanced characterization and nanofabrication techniques as well defect engineering in silicon. In addition to extensive facilities at Micronova Nanofabrication Centre, we use global research infrastructures in collaboration with our university and industry partners.
Hele Savin Group

Research topics

The group uses extensive clean room facitilites at Micronova Nanofabrication Centre for material research and device fabrication.

Latest publications

Black silicon boron emitter solar cells with EQE above 95% in UV

Kexun Chen, Ville Vähänissi, Zahra Jahanshah Rad, Juha Pekka Lehtio, Pekka Laukkanen, Marko Yli-Koski, Hele Savin 2021 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020

Efficient photon capture on germanium surfaces using industrially feasible nanostructure formation

Kexun Chen, Joonas Isometsä, Toni P. Pasanen, Ville Vähänissi, Hele Savin 2021 Nanotechnology

Luminescent (Er,Ho)2O3 thin films by ALD to enhance the performance of silicon solar cells

Amr Ghazy, Muhammad Safdar, Mika Lastusaari, Arto Aho, Antti Tukiainen, Hele Savin, Mircea Guina, Maarit Karppinen 2021 Solar Energy Materials and Solar Cells

AC-coupled n-in-p pixel detectors on MCz silicon with atomic layer deposition (ALD) grown thin film

A. Gädda, Jennifer Ott, S. Bharthuar, E. Brücken, M. Kalliokoski, A. Karadzhinova-Ferrer, M. Bezak, S. Kirschenmann, V. Litichevsky, M. Golovleva, L. Martikainen, A. Winkler, V. Chmill, E. Tuovinen, P. Luukka, Jaakko Härkönen 2021 NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A: ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Can hydrogenation mitigate Cu-induced bulk degradation in silicon?

Ismo T.S. Heikkinen, Brendan Wright, Anastasia H. Soeriyadi, Marko Yli-Koski, Moonyong Kim, Ville Vähänissi, Brett J. Hallam, Hele Savin 2021 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020

Temperature dependency of responsivity and dark current of nearly ideal black silicon photodiodes

Juha Heinonen, Antti Haarahiltunen, Michael Serue, Daria Kriukova, Ville Vähänissi, Toni P. Pasanen, Hele Savin, Mikko A. Juntunen 2021 SPIE CONFERENCE PROCEEDINGS

Processing and Interconnections of Finely Segmented Semiconductor Pixel Detectors for Applications in Particle Physics and Photon Detection

J. Härkönen, Jennifer Ott, A. Gädda, M. Bezak, E. Brücken, E. Tuovinen, S. Bharthuar, P. Luukka, E. Tuominen 2021 Frontiers in Physics

Observation of Si 2p Core-Level Shift in Si/High-κ Dielectric Interfaces Containing a Negative Charge

Juha-Pekka Lehtiö, Zahra Jahanshah Rad, Sari Granroth, Muhammad Yasir, Marko Punkkinen, Risto Punkkinen, Hannu-Pekka Hedman, Jean-Pascal Rueff, Ismo T.S. Rauha, Hele Savin, Pekka Laukkanen, Kalevi Kokko 2021 Advanced Electronic Materials

Study of interpad-gap of HPK 3.1 production LGADs with Transient Current Technique

S. Bharthuar, Jennifer Ott, K. Helariutta, V. Litichevskyi, E. Brücken, Akiko Gädda, Laura Martikainen, S. Kirschenmann, T. Naaranoja, P. Luukka 2020 Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
More information on our research in the Research database.
Research database

Associate Professor Hele Savin
Email: hele.savin at
Tel.: +358 50 5410 156

Postal address:
Department of Electronics and Nanoengineering
Aalto University School of Electrical Engineering
P.O. Box 13500, 00076 Aalto, Finland

Visiting address:
Micronova, 4th floor, room 4156
Tietotie 3, 02150 Espoo

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