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

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Research topics

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

Latest publications

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

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

Vacuum Outgassing Characteristics of Unpigmented 3-D Printed Polymers Coated with ALD Alumina

Nupur Bihari, Ismo T. S. Heikkinen, Giovanni Marin, Craig Ekstrum, Pierce J. Mayville, Shane Oberloier, Hele Savin, Maarit Karppinen, Joshua Pearce 2020 Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films

Efficient photon capture on germanium surfaces using industrially feasible nanostructure formation

Kexun Chen, Joonas Isometsä, Toni P. Pasanen, Ville Vähänissi, Hele Savin 2020 Nanotechnology

Improved emitter performance of RIE black silicon through the application of in-situ oxidation during POCl3 diffusion

Tsun Hang Fung, Toni Pasanen, Yu Zhang, Anastasia Soeriyadi, Ville Vähänissi, Giuseppe Scardera, David Payne, Hele Savin, Malcolm Abbott 2020 Solar Energy Materials and Solar Cells

Black-silicon ultraviolet photodiodes achieve external quantum efficiency above 130%

Moises Garin, Juha Heinonen, Lutz Werner, Toni Pasanen, Ville Vähänissi, Antti Haarahiltunen, M. Juntunen, Hele Savin 2020 Physical Review Letters

Clean and efficient recovery of spent LiCoO2 cathode material

Shichao He, Benjamin P. Wilson, Mari Lundström, Zhihong Liu 2020 Journal of Cleaner Production

AlOx surface passivation of black silicon by spatial ALD: Stability under light soaking and damp heat exposure

Ismo T. S. Heikkinen, George Koutsourakis, Sauli Virtanen, Marko Yli-Koski, Sebastian Wood, Ville Vähänissi, Emma Salmi, Fernando A. Castro, Hele Savin 2020 JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A

Atomic layer deposited aluminium oxide mitigates outgassing from fused filament fabrication–based 3-D printed components

Ismo T.S. Heikkinen, Giovanni Marin, Nupur Bihari, Craig Ekstrum, Pierce J. Mayville, Yuhuan Fei, Yun Hang Hu, Maarit Karppinen, Hele Savin, Joshua M. Pearce 2020 Surface and Coatings Technology
More information on our research in the Research database.
Research database

Contact:
Associate Professor Hele Savin
Email: hele.savin at aalto.fi
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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