Research output per year
Research output per year
Personal profile
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
Doctoral degree, Engineering and Technology, Aalto University
Award Date: 25 Aug 2016
Master's degree, Engineering and Technology, Helsinki University of Technology
Award Date: 15 May 2008
Fingerprint
Dive into the research topics where Ville Vähänissi is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Bipolar and unipolar charge transfer during the formation of silicon/iodine solution interfaces
Li, S., Alizadeh, M., Vähänissi, V., Savin, H., She, G., Shi, W. & Oksanen, J., 1 Jan 2026, In: Surfaces and Interfaces. 80, p. 1-7 7 p., 108405.Research output: Contribution to journal › Article › Scientific › peer-review
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Carrier mobility in crystalline germanium at high injection: experimental characterization of carrier-carrier scattering
Garín, M., Gamel, M., Yli-Koski, M., Vähänissi, V., Rivera, G., Savin, H. & Martín, I., 15 Jan 2026, In: Solar Energy Materials and Solar Cells. 295, 114011.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Downloads (Pure) -
(oral talk) Surface Passivation of Black Germanium for Interdigitated Back Contact Thermophotovoltaic Cell
Gamel, M., Rivera, G., López, G., Terletskaia, M., Liu, H., Vähänissi, V., Savin, H., Garin, M. & Martin, I., 2025.Research output: Contribution to conference › Abstract › Scientific › peer-review
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(poster) Femtosecond laser induced modification of Ge for improved optical properties
Gnatyuk, D., Vähänissi, V., Savin, H. & Liu, X., 2025.Research output: Contribution to conference › Abstract › Scientific › peer-review
File2 Downloads (Pure) -
(poster) Femtosecond-laser surface-textured glass for building integrated photovoltaics
Gnatyuk, D., Vähänissi, V., Savin, H. & Liu, X., Oct 2025, p. 59-60.Research output: Contribution to conference › Abstract › Scientific › peer-review
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Nano-Astro: Nanostructured silicon CCDs for astronomical imaging
Savin, H. (Principal investigator) & Vähänissi, V. (Principal investigator)
01/01/2026 → 31/12/2027
Project: RCF Other
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-: PREIN 2 (2025-2026)
Hämäläinen, J. (Principal investigator), Ahmed, F. (Project Member), Ding, E. (Project Member), Shafi, A. (Project Member), Zang, X. (Project Member), Vähänissi, V. (Project Member), Hilden, P. (Project Member), Ali, F. (Project Member) & Chen, K. (Project Member)
01/01/2025 → 31/12/2026
Project: RCF Flagship
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-: NIR-REM/Vähänissi
Vähänissi, V. (Principal investigator)
01/01/2025 → 31/12/2026
Project: RCF Academy Project targeted call
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PREIN 2: Photonics Research and Innovation
Naukkarinen, O. (Principal investigator), Ding, E. (Project Member), Liu, X. (Project Member), Vähänissi, V. (Project Member), Li, D. (Project Member), Ahmed, F. (Project Member), Sehrawat, S. (Project Member), Shafi, A. (Project Member), Zang, X. (Project Member), Radfar, B. (Project Member), Yli-Koski, M. (Project Member), Mehmood, N. (Project Member), Hämäläinen, J. (Principal investigator) & Sun, Z. (Co-PI)
01/09/2022 → 31/12/2026
Project: RCF Flagship
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COLO: Elimination of contact losses in semiconductors through atomic-scale interface research and engineering
Savin, H. (Principal investigator), Liu, H. (Project Member), Timperi, I. (Project Member), Yli-Koski, M. (Project Member), Gosalvez, S. (Project Member), Isometsä, J. (Project Member), Setälä, O. (Project Member), Räisänen, S. (Project Member), Morozova, O. (Project Member), Suihkonen, S. (Project Member), Lahtiluoma, L. (Project Member), Vähänissi, V. (Project Member), Chen, K. (Project Member), Sutinen, K. (Project Member) & Matilainen, M. (Project Member)
01/09/2021 → 31/08/2025
Project: RCF Academy Project
Datasets
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Measurement and simulation of optical properties of nanostructured silicon heavily implanted with selenium
Radfar, B. (Creator), Liu, X. (Contributor), Berencen, Y. (Contributor), Shaikh, M. S. (Contributor), Prucnal, S. (Contributor), Kentsch, U. (Contributor), Vähänissi, V. (Contributor), Zhou, S. (Contributor) & Savin, H. (Contributor), Zenodo, 13 May 2024
DOI: 10.5281/zenodo.10522962, https://zenodo.org/records/10522963
Dataset
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Porous germanium for germanium surface passivation
Terletskaia, M. (Creator), Isometsä, J. (Creator), Miettinen, M. (Creator), Laukkanen, P. (Creator), Vähänissi, V. (Creator) & Savin, H. (Creator), Zenodo, 16 Aug 2024
DOI: 10.5281/zenodo.13330358, https://zenodo.org/records/13330359
Dataset
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Data set for paper 'Impact of post-ion implantation annealing on Se-hyperdoped Ge'
Liu, X. (Creator), Mc Kearney, P. (Contributor), Schäfer, S. (Contributor), Radfar, B. (Contributor), Berencen, Y. (Contributor), Kentsch, U. (Contributor), Vähänissi, V. (Contributor), Zhou, S. (Contributor), Kontermann, S. (Contributor) & Savin, H. (Contributor), Zenodo, 27 Jun 2024
DOI: 10.5281/zenodo.10963586, https://doi.org/10.5281/zenodo.12567660
Dataset
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Dataset for Femtosecond-Laser-Surface-Nanostructured Glass in BIPV Applications
Meng, L. (Creator), Awashra, M. (Creator), Hamed, S. (Creator), Gnatyuk, D. (Creator), Vähänissi, V. (Creator), Jokinen, V. (Creator), Savin, H. (Creator) & Liu, X. (Creator), Zenodo, 20 Nov 2024
DOI: 10.5281/zenodo.14190522, https://zenodo.org/records/14190523
Dataset
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Elimination of dead layer in silicon particle detectors via induced electric field based charge collection
Setälä, O. (Creator), Pasanen, T. (Creator), Ott, J. (Creator), Krainukovs, I. (Creator), Heinonen, J. (Creator), Vähänissi, V. (Creator) & Savin, H. (Creator), Zenodo, 4 Sept 2024
DOI: 10.5281/zenodo.13683409, https://zenodo.org/records/13683410
Dataset
Prizes
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35th EU PVSEC 2018 Student Award
Pasanen, T. (Recipient), Savin, H. (Supervising professor) & Vähänissi, V. (Advisor), 28 Sept 2018
Prize: Award or honor granted for a specific work
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Award for high-quality teaching in the academic year 2017-2018
Savin, H. (Recipient), Vähänissi, V. (Recipient) & Pasanen, T. (Recipient), 4 Oct 2018
Prize: Award or honor granted for a specific work
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Young Scientist Award (GADEST)
Pasanen, T. (Recipient), Savin, H. (Supervising professor) & Vähänissi, V. (Advisor), 27 Sept 2019
Prize: Award or honor granted for a specific work
Activities
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Surface Passivation of Black Germanium for Interdigitated Back Contact Thermophotovoltaic Cell
Gamel, M. (Speaker), Rivera, G. (Contributor), López, G. (Contributor), Terletskaia, M. (Contributor), Liu, H. (Contributor), Vähänissi, V. (Contributor), Savin, H. (Contributor), Garin, M. (Contributor) & Martin, I. (Contributor)
22 Sept 2025 → 26 Sept 2025Activity: Talk or presentation types › Conference presentation
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Effect Of The Morphology Of Black Silicon Passivated By Alumina On The Performance Of Interdigitated Back Contact Solar Cells
Khelifati, N. (Contributor), Aydın, O. (Speaker), Arıkan, B. (Contributor), Fortas, G. (Contributor), Harkat, L. (Contributor), Vähänissi, V. (Contributor), Liu, X. (Contributor), Kezzoula, F. (Contributor) & Turan, R. (Contributor)
5 Jul 2024Activity: Talk or presentation types › Conference presentation
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Impact of upconverting atomic layer deposited Er2O3 on Si solar cell surface passivation
Radfar, B. (Speaker), Ghazy, A. (Contributor), Liu, X. (Contributor), Vähänissi, V. (Contributor), Karppinen, M. (Contributor) & Savin, H. (Contributor)
30 May 2024Activity: Talk or presentation types › Conference presentation
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Sulfur-hyperdoped silicon by ultrashort laser processing
Schäfer, S. (Speaker), Mc Kearney, P. (Contributor), Paulus, S. (Contributor), Liu, X. (Contributor), Radfar, B. (Speaker), Vähänissi, V. (Contributor), Mutschall, D. (Contributor), Koskinen, V. (Contributor), Serue, M. (Contributor), Niemeyer, T. (Contributor), Seibt, M. (Contributor), Savin, H. (Contributor) & Kontermann, S. (Contributor)
16 Sept 2024Activity: Talk or presentation types › Invited academic talk
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Dead-Layer-Free Semiconductor Detectors via Highly Charged Dielectrics
Setälä, O. (Speaker), Pasanen, T. (Contributor), Ott, J. (Contributor), Heinonen, J. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
30 Oct 2024Activity: Talk or presentation types › Conference presentation
Press/Media
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Aalto University Reports Findings in Science (Boron-Implanted Black Silicon Photodiode with Close-to-Ideal Responsivity from 200 to 1000 nm)
Savin, H., Vähänissi, V., Liu, X. & Radfar, B.
06/07/2023
1 item of Media coverage
Press/Media: Media appearance