Activities per year
Activities
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Effect Of The Morphology Of Black Silicon Passivated By Alumina On The Performance Of Interdigitated Back Contact Solar Cells
Nabil Khelifati (Contributor), Ozan Aydın (Speaker), Bülent Arıkan (Contributor), Ghania Fortas (Contributor), Leila Harkat (Contributor), Ville Vähänissi (Contributor), Xiaolong Liu (Contributor), Faouzi Kezzoula (Contributor) & Raşit Turan (Contributor)
5 Jul 2024Activity: Talk or presentation types › Conference presentation
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Wide-spectral absorption of femtosecond laser textured germanium
Liu, X. (Speaker) & Halmela, J. (Contributor)
14 May 2024 → 16 May 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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Hyperdoping germanium with titanium via femtosecond laser processing
Xiaolong Liu (Speaker), Dmytro Gnatyuk (Contributor), Ville Vähänissi (Contributor) & Hele Savin (Speaker)
17 Sept 2024Activity: Talk or presentation types › Conference presentation
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Talk title: Highly efficient IR detection unit based on high-purity black germanium technology
Hele Savin (Invited speaker)
12 Jun 2024Activity: Talk or presentation types › Conference presentation
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Characterization of electrically active defefts in CZ-Si by photoluminescence imaging
Hele Savin (Contributor)
12 Sept 2024Activity: Talk or presentation types › Conference presentation
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Effect of rapid thermal annealing on optical and structural properties of fs-laser surface processed Ge
Gnatyuk, D. (Speaker), Radfar, B. (Contributor), Savin, H. (Contributor) & Liu, X. (Contributor)
5 Sept 2024Activity: Talk or presentation types › Conference presentation
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Effective carrier lifetime in ultrashort pulse laser hyperdoped silicon: dopant concentration dependence and practical upper limits
Schäfer, S. (Speaker), Liu, X. (Contributor), Mc Kearney, P. (Contributor), Paulus, S. (Contributor), Radfar, B. (Contributor), Vähänissi, V. (Contributor), Savin, H. (Contributor) & Kontermann, S. (Contributor)
18 Sept 2023Activity: Talk or presentation types › Conference presentation
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Nanostructured Silicon Hyperdoped with Se by Ion Implantation and Flash Lamp Annealing
Radfar, B. (Speaker), Liu, X. (Contributor), Prucnal, S. (Contributor), Shaikh, M. S. (Contributor), Kentsch, U. (Contributor), Vähänissi, V. (Contributor), Berencén, Y. (Contributor), Zhou, S. (Contributor) & Savin, H. (Contributor)
19 Sept 2023Activity: Talk or presentation types › Conference presentation
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Improved QE in CMOS image sensors with nano-black antireflection layer
Prest, M. J. (Speaker), Setälä, O. (Contributor), Stefanov, K. D. (Contributor), Vähänissi, V. (Contributor), Savin, H. (Contributor) & Jordan, D. (Contributor)
21 May 2023 → 25 May 2023Activity: Talk or presentation types › Conference presentation
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Excellent Responsivity and Low Dark Current Obtained with Metal-Assisted Chemical Etched Si Photodiode
Savin, H. (Invited speaker), Chen, K. (Contributor), Setälä, O. (Contributor), Liu, X. (Contributor), Radfar, B. (Contributor) & Vähänissi, V. (Contributor)
31 Oct 2023Activity: Talk or presentation types › Conference presentation
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Electroless excitation of semiconductors through semiconductor-liquid interfaces
Oksanen, J. (Speaker), Li, S. (Contributor), Chen, K. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
12 Apr 2023Activity: Talk or presentation types › Conference presentation
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Controlling SiO2 thin film charge and interface defect density on germanium
Liu, H. (Speaker), Pasanen, T. (Contributor), Leiviskä, O. (Contributor), Isometsä, J. (Contributor), Fung, J. (Contributor), Yli-Koski, M. (Contributor), Miettinen, M. (Contributor), Laukkanen, P. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
8 Sept 2023Activity: Talk or presentation types › Conference presentation
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Surface Passivation and Charge Transfer at TiO2/Si Interface
Xiaolong Liu (Speaker), Ramsha Khan (Contributor), Hannu Pasanen (Contributor), Harri Ali-Löytty (Contributor), Ville Vähänissi (Contributor), Mika Valden (Contributor), Nikolai V. Tkachenko (Contributor) & Hele Savin (Contributor)
8 Sept 2023Activity: Talk or presentation types › Conference presentation
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Carrier recombination in black silicon fabricated by high repetition rate fs-laser
Liu, X. (Speaker), Radfar, B. (Contributor), Pasanen, T. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
30 May 2022 → 3 Jun 2022Activity: Talk or presentation types › Conference presentation
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Compatibility of Al-neal in processing of Si devices with Al2O3 layer
Setälä, O. (Speaker), Pasanen, T. (Contributor), Ott, J. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
11 Sept 2022 → 16 Sept 2022Activity: Talk or presentation types › Conference presentation
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Record-high UV response in implanted junctions through passivation of surface defects and minimisation of boron implantation damage
Chen, K. (Speaker), Setälä, O. (Contributor), Radfar, B. (Contributor), Kroth, U. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
14 Sept 2022Activity: Talk or presentation types › Conference presentation
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Controlling charge polarity and defect density at Ge/Al2O3 interface using SiNx interlayer
Liu, H. (Speaker), Pasanen, T. (Contributor), Fung, T. H. (Contributor), Isometsä, J. (Contributor), Leiviskä, O. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
13 Sept 2022Activity: Talk or presentation types › Conference presentation
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Temperature dependency of responsivity and dark current of nearly ideal black silicon photodiodes
Heinonen, J. (Contributor), Haarahiltunen, A. (Contributor), Serue, M. (Contributor), Kriukova, D. (Contributor), Vähänissi, V. (Contributor), Pasanen, T. (Contributor), Savin, H. (Contributor), Werner, L. (Contributor) & Juntunen, M. (Speaker)
5 Mar 2021Activity: Talk or presentation types › Conference presentation
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Nanostructuring process to minimize reflective losses in optoelectronic devices
Repo, P. (Speaker), Pasanen, T. (Contributor), Vähänissi, V. (Contributor), Isometsä, J. (Contributor), Chen, K. (Contributor), Garin, M. (Contributor) & Savin, H. (Contributor)
19 Jun 2021Activity: Talk or presentation types › Conference presentation
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Proof of concept: ARC-free black interdigitated back contact module with wide acceptance angle
Ortega, P. (Contributor), Pasanen, T. (Speaker), Garin, M. (Contributor), von Gastrow, G. (Contributor), Savisalo, T. (Contributor), Tolvanen, A. (Contributor), Vahlman, H. (Contributor), Vähänissi, V. (Contributor), Carrio, D. (Contributor), Alcubilla, R. (Contributor) & Savin, H. (Contributor)
6 Feb 2020Activity: Talk or presentation types › Conference presentation
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High-sensitivity NIR photodiodes using black silicon
Heinonen, J. (Contributor), Haarahiltunen, A. (Contributor), Serué, M. (Contributor), Vähänissi, V. (Contributor), Pasanen, T. (Contributor), Savin, H. (Contributor), Werner, L. (Contributor) & Juntunen, M. (Speaker)
4 Feb 2020Activity: Talk or presentation types › Conference presentation
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Nanostructured germanium for near-infrared sensors with >99 % absorption up to 1600-nm wavelength
Pasanen, T. (Speaker), Isometsä, J. (Contributor), Garin, M. (Contributor), Chen, K. (Contributor), Vähänissi, V. (Contributor), Soldano, C. (Contributor) & Savin, H. (Contributor)
4 Feb 2020Activity: Talk or presentation types › Conference presentation
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AC-coupled pixel detectors with aluminium oxide field insulator on p-type MCz silicon
Ott, J. (Speaker)
19 Feb 2020Activity: Talk or presentation types › Conference presentation
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Doping in silicon affects the blistering of ALD-grown aluminium oxide
Ott, J. (Speaker), Garin, M. (Contributor), Rosta, K. (Contributor), Pasanen, T. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
26 Sept 2019Activity: Talk or presentation types › Conference presentation
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Passivation of detector-grade Fz-Si with atomic layer deposited aluminium oxide
Pasanen, T. (Speaker), Ott, J. (Contributor), Repo, P. (Contributor), Seppänen, H. (Contributor), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
23 Sept 2019Activity: Talk or presentation types › Conference presentation
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Dissociation and formation kinetics of iron-boron pairs in silicon after phosphorus implantation gettering
Nabil Khelifati (Contributor), Hannu Laine (Contributor), Ville Vähänissi (Contributor), Hele Savin (Contributor), Fatima Zohra Bouamama (Contributor) & Djoudi Bouhafs (Contributor)
22 Sept 2019 → 27 Sept 2019Activity: Talk or presentation types › Conference presentation
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Patternability of quasi-mono silicon beyond the photovoltaic industry
Zhengjun Liu (Speaker), Ville Vähänissi (Contributor) & Hele Savin (Contributor)
2018Activity: Talk or presentation types › Conference presentation
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Impact of Copper on Light-Induced Degradation in Czochralski-Silicon PERC Solar Cells
Chiara Modanese (Speaker), Matthias Wagner (Contributor), Franziska Wolny (Contributor), Alexander Oehlke (Contributor), Hannu Laine (Contributor), Alessandro Inglese (Contributor), Henri Vahlman (Contributor), Marko Yli-Koski (Contributor) & Hele Savin (Contributor)
18 Mar 2018 → 21 Mar 2018Activity: Talk or presentation types › Conference presentation
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Elimination of light-induced degradation by black silicon
Pasanen, T. P. (Speaker), Modanese, C. (Contributor), Vähänissi, V. (Contributor), Laine, H. (Contributor), Wolny, F. (Contributor), Oehlke, A. (Contributor), Kusterer, C. (Contributor), Heikkinen, I. T. S. (Contributor), Wagner, M. (Contributor) & Savin, H. (Contributor)
25 Sept 2018Activity: Talk or presentation types › Conference presentation
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Effects of Laser Modified Surface Morphologies and Post-Texturing Cleanings on Si Wafer
Radfar, B. (Speaker), Es, F. (Contributor) & Turan, R. (Contributor)
5 Jul 2018Activity: Talk or presentation types › Conference presentation
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Efficient Surface Passivation of Black Silicon Using Spatial ALD
Heikkinen, I. T. S. (Contributor), Repo, P. (Contributor), Vähänissi, V. (Contributor), Pasanen, T. (Contributor), Malinen, V. (Contributor), Salmi, E. (Speaker) & Savin, H. (Contributor)
17 Jul 2017Activity: Talk or presentation types › Conference presentation
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Passivation of black silicon phosphorus emitters with atomic layer deposited SiO2/Al2O3 stacks
Pasanen, T. (Speaker), Vähänissi, V. (Contributor) & Savin, H. (Contributor)
3 Apr 2017Activity: Talk or presentation types › Conference presentation
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High resolution imaging of light-activated copper impurities in multicrystalline silicon wafers by photoluminescence
Modanese, C. (Contributor), Inglese, A. (Contributor), Focareta, A. (Contributor), Schindler, F. (Contributor), Schön, J. (Contributor), Schubert, M. C. (Contributor) & Savin, H. (Speaker)
24 May 2017Activity: Talk or presentation types › Conference presentation
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Investigation of PEALD SiO2 thin films by rf-GDOES
Zhu, Z. (Contributor), Modanese, C. (Speaker), Sippola, P. (Contributor), Di Sabatino, M. (Contributor) & Savin, H. (Contributor)
25 May 2017Activity: Talk or presentation types › Conference presentation
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Increasing yield of cast-silicon ingots via Tabula Rasa anneal
Laine, H. (Speaker), Vähänissi, V. (Contributor), Liu, Z. (Contributor), Pasanen, T. (Contributor), Haarahiltunen, A. (Contributor), Yli-Koski, M. (Contributor) & Savin, H. (Contributor)
4 Apr 2017Activity: Talk or presentation types › Conference presentation
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Modeling the size distribution of iron precipitates in phosphorus-implanted emitters
Hannu Laine (Contributor), Ville Vähänissi (Contributor), Marko Yli-Koski (Contributor), Zhengjun Liu (Contributor) & Hele Savin (Contributor)
2014 → …Activity: Talk or presentation types › Conference presentation
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The 14th International Conference on Atomic Layer Deposition, Kyoto, June 15-18, 2014, Japan
Hele Savin (Contributor)
2014Activity: Talk or presentation types › Conference presentation
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Enhancement of internal gettering efficiency of iron by low temperature nucleation
Hele Savin (Speaker)
2004Activity: Talk or presentation types › Conference presentation
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Detection of iron contamination in internally gettered p-type silicon wafers by lifetime measurements
Haarahiltunen, A. (Speaker), Savin, H. (Contributor), Yli-Koski, M. (Contributor) & Sinkkonen, J. (Contributor)
2004Activity: Talk or presentation types › Conference presentation
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Characterization of denuded zones in internally gettered silicon wafers by electron beam induced current measurements
Haarahiltunen, A. (Speaker), Savin, H. (Contributor), Yli-Koski, M. (Contributor) & Sinkkonen, J. (Contributor)
2003Activity: Talk or presentation types › Conference presentation