Browsing NTNU Open by Author "Di Sabatino, Marisa"
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3D TEM characterization of silver implanted silicon for intermediate band solar cells
Lysne, Hogne (Master thesis, 2017)As the need for renewable and sustainable energy sources are growing solar cells are turning into one of the most affordable and widely adopted solutions for renewable electricity production. This is driven by a steady ... -
Analysis of an Agrivoltaic System at Skjetlein High School, Norway
Malhi, Harry (Master thesis, 2023)Agrivoltaics er et system for samlokalisering av solcellepaneler med landbruksvekster, hvor panelene er montert på en struktur over avlingene eller er integrert i avlingenes baldakin. Dette systemet adresserer utfordringen ... -
Behaviour of the slip-cast crucible as a contamination source during silicon directional solidification
Skarstad, Hanna Vaksvik (Master thesis, 2016)In this work the behaviour of the slip-cast crucible as a contamination source of multicrystalline silicon during directional solidification (DS) was investigated. Transport parameters of iron were estimated in two types ... -
Cristobalite formation on quartz crucibles inner surface for CZ solar cell ingot production
Hendrickx, Helene Elisabeth J (Master thesis, 2017)Cristobalite, the stable high temperature polymorph of quartz, is formed on the surface of fused quartz crucibles used for the growth of monocrystalline silicon ingots by the Czochralski process. When not controlled and ... -
Development and Characterization of Surface Passivation Materials on Silicon Wafers for Solar Cells
Xuemei, Cheng (Doctoral theses at NTNU;2017:53, Doctoral thesis, 2017)A main challenge for high efficiency crystalline silicon solar cells is to reduce the current and voltage loss from the surface recombination process. An effective surface passivation system is needed to obtain high ... -
Development of a method to determine oxygen distribution in industrial monocrystalline silicon ingots
Penhaso Martins, Joao Manuel (Master thesis, 2016)An alternative method to determine oxygen concentration in industrial monocrystalline silicon has been developed and tested, resorting to statistical analysis and modeling. The model has been applied to different set ... -
Effect of Germanium in Silicon for Solar Applications
De Martino, Giuseppe (Master thesis, 2016)The effect of Ge in multicrystalline Silicon wafers is studied along with a comparison in smaller scale systems (microwires). -
EFFECT OF Ni ADDITIONS ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF THE A356 ALUMINIUM FOUNDRY ALLOY
Poli, Federico (Master thesis, 2016)In the last years, aluminium producers have reported increasing Ni concentrations in primary aluminium originating from the anodes employed during the electrolytic reduction of alumina. Due to the absence of cost efficient ... -
Effect of sand treatment on the properties of quartz crucible for the Czochralski process
Stensvold, Thorleif (Master thesis, 2020)Abstract will be available on 2023-06-10 -
Effect of Vanadium on Grain Refinement of Aluminium
Johanson, Audun (Master thesis, 2013)Today, grain refinement of aluminium is effectively achieved by inoculation. The performance of the inoculants, as well as further growth restriction in the liquid metal, can be affected by alloy- elements and impurities. ... -
Electrodeposition of Silicon in Fluoride Melts: Production of Silicon Films
Famiyeh, Lord (Master thesis, 2011)There has been considerable interest in electrodeposition of silicon from fluoride melts on a suitable substrate for its application in thin film solar cells. The goal of this work is to produce a high purity silicon films ... -
Fabrication and Characterization of an Intermediate Band Material based on Ion Implantation and Pulsed Laser Melting of Ag in Fz-Si
Hauge, Heidi Sæverud (Master thesis, 2015)Intermediate band solar cells (IBSCs) are an innovative field of material engineering and their prospect of high efficiency may contribute to meet the demand for new energy alternatives. IBCSs are based on absorption of ... -
Fluidity of Aluminium Foundry Alloys
Di Sabatino, Marisa (Doktoravhandlinger ved NTNU, 1503-8181; 2005:185, Doctoral thesis, 2005)The fluidity of an alloy plays a key role for the foundry and transport industries as it affects the quality and soundness of the cast products. Particularly, fluidity influences the reject rates, hence casting costs and ... -
Grain boundary effect on lifetime in high performance multicrystalline silicon during solar cell processing
Adamczyk, Krzysztof; Søndenå, Rune; M'hamdi, Mohammed; Autruffe, Antoine; Stokkan, Gaute; Di Sabatino, Marisa (Journal article; Peer reviewed, 2016)High performance multicrystalline silicon wafers used in solar cell processing have been investigated with focus on quantification of the grain boundary effect on lifetime. The lifetime of a set of 16 wafers from different ... -
Impurities in the Crucible-Coating-Silicon System for Solar Cell Applications
Esser, Cecilie Bjørgen (Master thesis, 2015)Materials of high purity are required for the production of crystalline silicon for solar cells. Impurities are indeed very detrimental to solar cell efficiency. Contamination can occur at many stages during the processing, ... -
In situ investigation of spinodal decomposition in hypermonotectic Al–Bi and Al–Bi–Zn alloys
Schaffer, Paul; Mathiesen, Ragnvald; Arnberg, Lars; Di Sabatino, Marisa; Snigirev, Anatoly (Journal article; Peer reviewed, 2008)Spinodal decomposition of hypermonotectic Al–6 wt.%Bi, Al–8 wt.%Bi and Al–6 wt.%Bi–8 wt.%Zn alloys has been investigated using synchrotron radiography. In the case of the 6 and 8 wt.%Bi binary alloys undercoolings of ... -
Internal Gettering of Iron at Extended Defects
Knörlein, Michael; Autruffe, Antoine; Søndenå, Rune; Di Sabatino, Marisa (Journal article; Peer reviewed, 2014)The role of iron in crystalline silicon solar cells has been extensively investigated, yet the interaction mechanisms with structural defects have not been fully understood. In this work we have investigated a multicrystalline ... -
Investigation of bubble distribution and evolution in solar cell quartz crucibles
Hansen, Sebastian Holand (Master thesis, 2017)Quartz crucibles are, among other applications, used to produce monocrystalline silicon ingots for the solar cell industry. The crucibles must be of high purity as any gas bubbles or impurities close to the crucible-melt ... -
Investigation on Quartz Crucibles for Monocrystalline Silicon Ingots for Solar Cells
Thorsen, Fredrik Winther (Master thesis, 2016)This thesis focuses on the bubble formation and growth in the quartz crucibles used to produce Czochralski (Cz) monocrystalline silicon ingots for solar cells production. Several experiments have been conducted to investigate ... -
Liquinert quartz crucible - Removal of OH groups in silica crucibles to reduce wetting between the crucible and the silicon melt
Strømmen, Mathias (Master thesis, 2018)When producing monocrystalline silicon ingots for the solar cell industry quartz crucibles are most commonly used. A quartz crucible used in the Czochralski (CZ) process will be used to pull ingots for more than 100 hours. ...