Kai Erik Ekstrøm

Researcher

Department of Materials Science and Engineering

kai.e.ekstrom@ntnu.no +47 73597094

Berg, E-133, Gløshaugen, Alfred Getz vei 2

Background:

MSc in Chemical Engineering and Biotechnology; specialized in Materials Chemistry and Energy Technology (NTNU; 2012).
PhD in Physical Metallurgy (NTNU; 2016).

2016 - present: SFI Metal Production

Associated with the Norwegian Waste to Value project and the European RemovAl project on recycling and refining of metallurgical waste streams.
Thermodynamics (FactSage) and modelling of metallurgical processes.

2012 - 2016: Physical Metallurgy; Solidification and Casting

Impurity control of multicrystalline silicon.
- Impurity diffusion from crystallization crucibles.
Structure control of multicrystalline silicon.
- Nucleation, mono-like and high-performance multicrystalline silicon.

Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

2020

Solem, Cathrine Kyung Won; Ekstrøm, Kai Erik; Tranell, Gabriella; Aune, Ragnhild Elizabeth. (2020) Evaluation of the Effect of CO2 Cover Gas on the Rate of Oxidation of an AlMgSi Alloy. Light Metals.

2017

Autruffe, Antoine; M'hamdi, Mohammed; Schindler, Florian; Heinz, Friedemann D.; Ekstrøm, Kai Erik; Schubert, Martin C.; Di Sabatino Lundberg, Marisa; Stokkan, Gaute. (2017) High performance multicrystalline silicon: Grain structure and iron precipitation. Journal of Applied Physics. vol. 122 (13).
Olsen, Espen; Bergan, Simen; Mehl, Torbjørn; Burud, Ingunn; Ekstrøm, Kai Erik; Di Sabatino Lundberg, Marisa. (2017) Defect related radiative recombination in mono-like crystalline silicon wafers. Physica Status Solidi (a) applications and materials science. vol. 214 (8).
Stokkan, Gaute; Di Sabatino Lundberg, Marisa; Søndenå, Rune; Juel, Mari; Autruffe, Antoine; Adamczyk, Krzysztof; Skarstad, Hanna Vaksvik; Ekstrøm, Kai Erik; Wiig, Marie Syre; You, Chang Chuan; Haug, Halvard; M'hamdi, Mohammed. (2017) Impurity control in high performance multicrystalline silicon. Physica Status Solidi (a) applications and materials science. vol. 214 (7).

2016

Castellanos, Sergio; Ekstrøm, Kai Erik; Autruffe, Antoine; Jensen, Mallory A.; Morishige, Ashley E.; Hofstetter, Jasmin; Yen, Patricia; Lai, Barry; Stokkan, Gaute; del Cañizo, Carlos; Buonassisi, Tonio. (2016) High-Performance and Traditional Multicrystalline Silicon: Comparing Gettering Responses and Lifetime-Limiting Defects. IEEE Journal of Photovoltaics. vol. 6 (3).
Ekstrøm, Kai Erik; Stokkan, Gaute; Autruffe, Antoine; Søndenå, Rune; Dalaker, Halvor; Arnberg, Lars; Di Sabatino, Marisa. (2016) Microstructure of multicrystalline silicon seeded by polysilicon chips and fluidized bed reactor granules. Journal of Crystal Growth. vol. 441.
Ekstrøm, Kai Erik; Søndenå, Rune; Autruffe, Antoine; Stokkan, Gaute; Arnberg, Lars; Di Sabatino, Marisa. (2016) The Effect of Phosphorus Gettering on Fine-Grained Multicrystalline Silicon. Proceedings of the European Photovoltaic Solar Energy Conference.
Ekstrøm, Kai Erik; Undheim, Espen; Stokkan, Gaute; Arnberg, Lars; Di Sabatino, Marisa. (2016) Beta-Si3N4 particles as nucleation sites in multicrystalline silicon. Acta Materialia. vol. 109.
Undheim, Espen; Ekstrøm, Kai Erik; Arnberg, Lars; Holmestad, Randi; Di Sabatino, Marisa. (2016) The effect of holding time on the size distribution of β-Si3N4 particles and nucleation undercooling in multicrystalline silicon. Physica Status Solidi. C, Current topics in solid state physics. vol. 13 (10-12).
Wiig, Marie Syre; Adamczyk, Krzysztof; Haug, Halvard; Ekstrøm, Kai Erik; Søndenå, Rune. (2016) The effect of phosphorus diffusion gettering on recombination at grain boundaries in HPMC-silicon wafers. Energy Procedia. vol. 92.
Ekstrøm, Kai Erik; Di Sabatino Lundberg, Marisa; Arnberg, Lars; Stokkan, Gaute. (2016) Structure Control of Multicrystalline Silicon. 2016.

2015

Ekstrøm, Kai Erik; Stokkan, Gaute; Søndenå, Rune; Dalaker, Halvor; Lehmann, T; Arnberg, Lars; Di Sabatino, Marisa. (2015) Structure and dislocation development in mono-like silicon. Physica Status Solidi (a) applications and materials science. vol. 212 (10).
Søndenå, Rune; Ekstrøm, Kai Erik; Stokkan, Gaute; Dalaker, Halvor; Lehmann, Toni; Arnberg, Lars; Di Sabatino, Marisa. (2015) Effect of Phosphorus Gettering on Quasi-Single-Crystalline Silicon Wafers. Proceedings of the European Photovoltaic Solar Energy Conference.

2012

Ekstrøm, Kai Erik; Øvrelid, Eivind Johannes; Dahl, Øystein. (2012) Growth and Characterization of Silicon Nanowires for Solar Cell Applications. 2012.