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, Natural Sciences, Soochow University (苏州大学)
Award Date: 18 Dec 2018
Bachelor's degree, Natural Sciences, Soochow University (苏州大学)
Award Date: 1 Jun 2013
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(poster) Contact formation via femtosecond-laser hyperdoping in silicon optoelectronic devices
Liu, X., Chen, K., Radfar, B., Mc Kearney, P., Paulus, S., Schäfer, S., Serué, M., Mutschall, D., Koskinen, V., Pasanen, T., Vähänissi, V., Juntunen, M., Kontermann, S. & Savin, H., 2023, (Accepted/In press).Research output: Contribution to conference › Poster › Scientific › peer-review
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Black ultra-thin crystalline silicon wafers reach the 4n2 absorption limit – application to IBC solar cells
Garin, M., Pasanen, T., López, G., Vähänissi, V., Chen, K., Martín, I. & Savin, H., 2023, (Accepted/In press) In: Small.Research output: Contribution to journal › Article › Scientific › peer-review
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Boron-implanted black silicon photodiode with close-to-ideal responsivity from 200 to 1000 nm
Setälä, O., Chen, K., Pasanen, T., Liu, X., Radfar, B., Vähänissi, V. & Savin, H., 2023, (Accepted/In press) In: ACS Photonics.Research output: Contribution to journal › Article › Scientific › peer-review
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Excellent Responsivity and Low Dark Current Obtained with Metal-Assisted Chemical Etched Si Photodiode
Chen, K., Setälä, O., Liu, X., Radfar, B., Pasanen, T., Serue, M., Heinonen, J., Savin, H. & Vähänissi, V., 1 Apr 2023, In: IEEE Sensors Journal. 23, 7, p. 6750-6756 7 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Downloads (Pure) -
Optoelectronic properties of black silicon fabricated by femtosecond laser in ambient air: exploring a large parameter space
Radfar, B., Chen, K., Setälä, O., Vähänissi, V., Savin, H. & Liu, X., 1 Mar 2023, In: Optics Letters. 48, 5, p. 1224 - 1227 4 p.Research output: Contribution to journal › Letter › Scientific › peer-review
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COLO: Elimination of contact losses in semiconductors through atomic-scale interface research and engineering
Savin, H., Isometsä, J., Yli-Koski, M., Suihkonen, S., Vähänissi, V. & Chen, K.
01/09/2021 → 31/08/2025
Project: Academy of Finland: Other research funding
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NanoWires (EMPIR): High throughput metrology for nanowire energy harvesting devices
Savin, H., Chen, K. & Pasanen, T.
01/09/2020 → 31/08/2023
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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HydroGer: Superior IR imaging via hydrogenated germanium nanostructures
Savin, H., Fung, J., Chen, K., Setälä, O. & Liu, H.
01/01/2020 → 31/12/2022
Project: Academy of Finland: Other research funding
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Record-high UV response in implanted junctions through passivation of surface defects and minimisation of boron implantation damage
Kexun Chen (Speaker), Olli Setälä (Contributor), Behrad Radfar (Contributor), Udo Kroth (Contributor), Ville Vähänissi (Contributor) & Hele Savin (Contributor)
14 Sept 2022Activity: Talk or presentation types › Conference presentation
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2021 Material Research Society (MRS) Conference (Boston, USA): Black silicon for PV—Which fabrication technology to choose?
Xiaolong Liu (Contributor), Behrad Radfar (Contributor), Kexun Chen (Contributor), Olli Setälä (Contributor), Toni Pasanen (Contributor), Ville Vähänissi (Contributor) & Hele Savin (Invited speaker)
6 Dec 2021Activity: Talk or presentation types › Invited academic talk
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Nanostructuring process to minimize reflective losses in optoelectronic devices
Päivikki Repo (Speaker), Toni Pasanen (Contributor), Ville Vähänissi (Contributor), Joonas Isometsä (Contributor), Kexun Chen (Contributor), Moises Garin (Contributor) & Hele Savin (Contributor)
19 Jun 2021Activity: Talk or presentation types › Conference presentation
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Nanostructured germanium for near-infrared sensors with >99 % absorption up to 1600-nm wavelength
Toni Pasanen (Speaker), Joonas Isometsä (Contributor), Moises Garin (Contributor), Kexun Chen (Contributor), Ville Vähänissi (Contributor), Caterina Soldano (Contributor) & Hele Savin (Contributor)
4 Feb 2020Activity: Talk or presentation types › Conference presentation