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

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

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

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

Adsorption Induced Bipolar Excitation at Semiconductor Surface

Shengyang Li, Kexun Chen, Mahdi Alizadeh, Ville Vähänissi, Hele Savin, Jani Oksanen 2024 Surfaces and Interfaces

Wide-spectral absorption of femtosecond laser textured germanium

Xiaolong Liu, Julius Halmela 2024 Proceedings of the 7th International Conference on Optics, Photonics and Lasers (OPAL' 2024)

Impact of Pulse Duration on the Properties of Laser Hyperdoped Black Silicon

Patrick Mc Kearney, Sören Schäfer, Xiaolong Liu, Simon Paulus, Ingo Lebershausen, Behrad Radfar, Ville Vähänissi, Hele Savin, Stefan Kontermann 2024 Advanced Photonics Research

(poster) Bosch-etched nanojungle black silicon and its applications

Lingju Meng, Moe Awashra, Xiaolong Liu, Seyed Mehran Mirmohammadi, Ville Jokinen, Sami Franssila 2024

Extended Infrared Absorption in Nanostructured Si Through Se Implantation and Flash Lamp Annealing

Behrad Radfar, Xiaolong Liu, Yonder Berencen, Mohd Saif Shaikh, Slawomir Prucnal, Ulrich Kentsch, Ville Vähänissi, Shengqiang Zhou, Hele Savin 2024 Physica Status Solidi (A) Applications and Materials Science
More information on our research in the Aalto research portal.
Research portal

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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