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
Doctor of Science (Technology), Engineering Physics
Award Date: 22 Jun 2016
Master of Science (Technology), Science and Engineering
Award Date: 4 Feb 2009
Fingerprint
Dive into the research topics where Ville Polojärvi 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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Tuneable Nonlinear Spin Response in a Nonmagnetic Semiconductor
Huang, Y. Q., Polojärvi, V., Aho, A., Isoaho, R., Hakkarainen, T., Guina, M., Buyanova, I. A. & Chen, W. M., Jun 2023, In: Physical Review Applied. 19, 6, 064048.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile5 Downloads (Pure) -
Epitaxial lift-off process for GaAs solar cells controlled by InGaAs internal sacrificial stressor layers and a PMMA surface stressor
Ramu, P., Aho, A., Polojärvi, V., Aho, T., Tukiainen, A., Hakkarainen, T., Reuna, J., Lyytikäinen, J., Hytönen, R. & Guina, M., Dec 2022, In: Solar Energy Materials and Solar Cells. 248, 6 p., 111982.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile17 Downloads (Pure) -
Advanced grid concept with external busbars applied on III‒V multijunction solar cells
Raappana, M., Kajas, N., Aho, A., Polojärvi, V., Aho, T., Isoaho, R., Tukiainen, A. & Guina, M., 5 Jan 2021, 2020 47th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, p. 951-954 4 p. (Conference record of the IEEE Photovoltaic Specialists Conference).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Open AccessFile14 Downloads (Pure) -
GaAs surface passivation for InAs/GaAs quantum dot based nanophotonic devices
Chellu, A., Koivusalo, E., Raappana, M., Ranta, S., Polojärvi, V., Tukiainen, A., Lahtonen, K., Saari, J., Valden, M., Seppänen, H., Lipsanen, H., Guina, M. & Hakkarainen, T., 2021, In: Nanotechnology. 32, 13, 12 p., 130001.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)21 Downloads (Pure) -
Hybrid quasi-3D optimization of grid architecture for single junction photovoltaic converters
Nikander, V., Wei, J., Aho, A., Polojärvi, V., Tukiainen, A. & Guina, M., Apr 2021, In: Optical and Quantum Electronics. 53, 4, 14 p., 205.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile14 Downloads (Pure)
Prizes
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BEST DOCTOR THESIS in PHOTONICS 2017
Polojärvi, Ville (Recipient), 30 May 2017
Prize: Award or honor granted for a specific work
Activities
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High Efficiency Lattice Matched Four-Junction Solar Cells on GaAs
Arto Aho (Speaker), Riku Isoaho (Speaker), Marianna Raappana (Speaker), Timo Aho (Speaker), Ville Polojärvi (Speaker), Antti Tukiainen (Speaker) & Mircea Guina (Speaker)
2019 → …Activity: Talk or presentation › Conference presentation
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Performance Study of Lattice-Matched Multijunction Solar Cells Incorporating GaInNAsSb Junctions with 0.7 – 1.4 eV Bandgap
Arto Aho (Speaker), Riku Isoaho (Contributor), Marianna Raappana (Contributor), Timo Aho (Contributor), Ville Polojärvi (Contributor), Antti Tukiainen (Contributor), Elina Anttola (Contributor), Severi Mäkelä (Contributor), Jarno Ville Tapio Reuna (Contributor) & Mircea Guina (Contributor)
2019 → …Activity: Talk or presentation › Conference presentation
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Performance Study of Lattice-Matched Multijunction Solar Cells Incorporating GaInNAsSb Junctions with 0.7 – 1.4 eV Bandgap
Arto Aho (Speaker), Riku Isoaho (Speaker), Marianna Raappana (Speaker), Timo Aho (Speaker), Ville Polojärvi (Speaker), Antti Tukiainen (Speaker), Elina Anttola (Speaker), Severi Mäkelä (Speaker), Jarno Ville Tapio Reuna (Speaker) & Mircea Guina (Speaker)
2019Activity: Talk or presentation › Conference presentation
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High Efficiency Lattice-Matched 4J Space Solar Cells on GaAs
Arto Aho (Speaker), Marianna Raappana (Contributor), Riku Isoaho (Contributor), Timo Aho (Contributor), Ville Polojärvi (Contributor), Antti Tukiainen (Contributor), Elina Anttola (Contributor), Severi Mäkelä (Contributor), Jarno Ville Tapio Reuna (Contributor), Hietalahti Arttu (Contributor) & Mircea Guina (Contributor)
2019Activity: Talk or presentation › Conference presentation
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Multijunction solar cells: path to conversion efficiencies exceeding 50%
Marianna Raappana (Speaker), Arto Aho (Contributor), Ville Polojärvi (Contributor), Timo Aho (Contributor), Riku Isoaho (Contributor), Hytönen Lauri (Contributor), Antti Tukiainen (Speaker) & Mircea Guina (Speaker)
30 May 2018Activity: Talk or presentation › Conference presentation