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

Elimination of dead layer in silicon particle detectors via induced electric field based charge collection

Olli E. Setälä, Toni P. Pasanen, Jennifer Ott, Igors Krainukovs, Juha Heinonen, Ville Vähänissi, Hele Savin 2025 Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Wetting Properties of Black Silicon Layers Fabricated by Different Techniques

Gagik Ayvazyan, Levon Hakhoyan, Arman Vardanyan, Hele Savin, Xiaolong Liu 2024 Physica Status Solidi - Rapid Research Letters

Atomic-layer-deposited CuxCryOz thin films: Optoelectronic properties and potential application as hole-selective contacts for c-Si solar cells

Gabriel Bartholazzi, Topias Jussila, Jorit Obenlüneschloß, Ville Vähänissi, Anjana Devi, Hele Savin, Maarit Karppinen, Daniel H. Macdonald, Lachlan E. Black 2024 Applied Surface Science

Contactless analysis of surface passivation and charge transfer at the TiO 2-Si interface

Ramsha Khan, Xiaolong Liu, Ville Vähänissi, Harri Ali-Löytty, Hannu P. Pasanen, Hele Savin, Nikolai V Tkachenko 2024 Physical Chemistry Chemical Physics

(oral talk) Effect Of The Morphology Of Black Silicon Passivated By Alumina On The Performance Of Interdigitated Back Contact Solar Cells

Nabil Khelifati, Ozan Aydın, Bülent Arıkan, Ghania Fortas, Leila Harkat, Ville Vähänissi, Xiaolong Liu, Faouzi Kezzoula, Raşit Turan 2024

(poster) New Method for Ohmic Metal to Si Contact Formation Utilizing Highly Charged ALD Dielectric.

Lassi Lahtiluoma, Olli Setälä, Ville Vähänissi, Hele Savin 2024

Bridging the gap between surface physics and photonics

Pekka Laukkanen, Marko Punkkinen, Mikhail Kuzmin, Kalevi Kokko, Xiaolong Liu, Behrad Radfar, Ville Vähänissi, Hele Savin, Antti Tukiainen, Teemu Hakkarainen, Jukka Viheriälä, Mircea Guina 2024 Reports on Progress in Physics

(poster) ALD SiO2 provides efficient Ge surface passivation with a tailorable charge polarity

Oskari Leiviskä, Hanchen Liu, John Fung, Joonas Isometsä, Ville Vähänissi, Hele Savin 2024
More information on our research in the Aalto research portal.
Research portal

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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