Purification of solar grade silicon using electromagnetic field

dc.contributor.authorDong, A.
dc.contributor.authorDamoah, L.N.W.
dc.contributor.authorZhang, L.
dc.contributor.authorZhu, H.
dc.date.accessioned2013-01-03T08:13:41Z
dc.date.accessioned2017-10-14T06:40:34Z
dc.date.available2013-01-03T08:13:41Z
dc.date.available2017-10-14T06:40:34Z
dc.date.issued2010
dc.description.abstractNon-metallic particles and the metallic impurity elements in the solar cell silicon have a strong detrimental effect on the conversion efficiency of the solar cell. Removing these impurities is one of the important tasks for silicon refining. The current paper proposed a new approach to purify silicon - electromagnetic (EM) separation. Since the non-metallic particles and the metallic impurity elements are non- or less-conductive while the molten silicon is well conductive, under EM field, the Lorenz force will push the particles to the boundary layer, thus separate these inclusions. In the current study, a high frequency EM field was imposed on the silicon melt in laboratory scale experiments with a frequency of 60 kHz and 15.0 A current, the non-conductive SiC particles were successfully pushed to the boundary layer close to the crucible wall.en_US
dc.identifier.citationAnping Dong; Damoah, L.N.W.; Lifeng Zhang; Hui Zhu; "Purification of solar grade silicon using electromagnetic field”, in Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE, pp.002266-002269, doi: 10.1109/PVSC.2010.5617131en_US
dc.identifier.urihttp://197.255.68.203/handle/123456789/2306
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.subjectEM fielden_US
dc.subjectHigh frequencyen_US
dc.subjectLorenz forcesen_US
dc.subjectMetallic impurityen_US
dc.subjectMolten siliconen_US
dc.titlePurification of solar grade silicon using electromagnetic fielden_US
dc.typeArticleen_US

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