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

Fast Wafer-Level Characterization of Silicon Photodetectors by Photoluminescence Imaging

Hussein Ayedh, Wisa Förbom, Juha Heinonen, Ismo T. S. Heikkinen, Marko Yli-Koski, Ville Vähänissi, Hele Savin 2022 IEEE Transactions on Electron Devices

Characterization of Heavily Irradiated Dielectrics for Pixel Sensors Coupling Insulator Applications

S. Bharthuar, M. Golovleva, M. Bezak, E. Brücken, A. Gädda, J. Härkönen, A. Karadzhinova-Ferrer, N. Kramarenko, S. Kirschenmann, P. Koponen, P. Luukka, K. Mizohata, J. Ott, E. Tuominen 2022 Frontiers in materials

Effect of anode sheet resistance on rise time of black silicon induced junction photodiodes

Juha Heinonen, Antti Haarahiltunen, Ville Vähänissi, Toni P. Pasanen, Hele Savin, Mikko A. Juntunen 2022 SPIE Conference Proceedings

(oral talk) Effect of anode sheet resistance on rise time of black silicon induced junction photodiodes

Juha Heinonen, Antti Haarahiltunen, Ville Vähänissi, Toni Pasanen, Hele Savin, Mikko Juntunen 2022

Spatial uniformity of black silicon induced junction photodiode responsivity

Juha Heinonen, Antti Haarahiltunen, Ville Vähänissi, Toni Pasanen, Hele Savin, Mikko Juntunen 2022

(poster) Reduction of defect density at Ge/Al2O3 interface using GeO2 interfacial layers

Joonas Isometsä, John Fung, Toni Pasanen, Hanchen Liu, Oskari Leiviskä, Marko Yli-Koski, Ville Vähänissi, Hele Savin 2022

Electron Injection in Metal Assisted Chemical Etching as a Fundamental Mechanism for Electroless Electricity Generation

Shengyang Li, Kexun Chen, Ville Vähänissi, Ivan Radevici, Hele Savin, Jani Oksanen 2022 The journal of physical chemistry letters

Millisecond-Level Minority Carrier Lifetime in Femtosecond Laser-Textured Black Silicon

Xiaolong Liu, Behrad Radfar, Kexun Chen, Elmeri Pälikkö, Toni Pasanen, Ville Vähänissi, Hele Savin 2022 IEEE Photonics Technology Letters
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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