Non-Metallic Particles in Solar Grade Silicon (SoG-Si)

Simple item page
dc.contributor.authorDamoah, L.N.W.
dc.contributor.authorDong, A.
dc.contributor.authorZhang, L.
dc.contributor.authorZhu, H.
dc.contributor.authorWang, C.
dc.date.accessioned2013-01-03T08:17:14Z
dc.date.accessioned2017-10-14T06:40:35Z
dc.date.available2013-01-03T08:17:14Z
dc.date.available2017-10-14T06:40:35Z
dc.date.issued2010
dc.description.abstractThis study investigated the non-metallic inclusions in Solar 2rade Silicon (SoG-Si), especially the distribution of inclusions in the top 15mm layer of multicrystalline silicon ingot. The SoG-Si ingot produced from directional solidification process usually pushes the impurities to the top and finally cut off and discarded, which leads to material loss. The hard inclusions lead to wire breakages during the cutting of the ingot into wafers. The main kinds of inclusions found in top-cut silicon scraps from two manufacturers have been investigated using acid extraction, automated feature analysis techniques and SEM-EDS and optical Microscope: they are needle-like Si3N4 and lumpy SiC inclusions. Surface observations of the scraps before polishing revealed that, Si3N4 inclusions are usually bigger and in some cases can be about a few millimeters. SiC inclusions are usually smaller, ∼200μm but can be ∼500μm in some cases. F or the directional solidified silicon ingot, it was determined that an approximate distance of ∼10mm is a good enough cutoff thickness.en_US
dc.identifier.citationDamoah, L.N.W.; Anping Dong; Lifeng Zhang; Hui Zhu; Chenlei Wang; , "Non-metallic particles in Solar Grade Silicon (SoG-Si)", in Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE, pp.002270-002274, doi: 10.1109/PVSC.2010.5617125en_US
dc.identifier.urihttp://197.255.68.203/handle/123456789/2307
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.subjectDirectional solidificationen_US
dc.subjectMulti-crystalline siliconen_US
dc.subjectNon-metallic inclusionsen_US
dc.subjectOptical microscopesen_US
dc.subjectSEM-EDSen_US
dc.subjectSolar grade siliconen_US
dc.titleNon-Metallic Particles in Solar Grade Silicon (SoG-Si)en_US
dc.typeArticleen_US

Files

License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
license.txt
Size:
1.82 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
No Thumbnail Available
Name:
license.txt
Size:
0 B
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Department of Materials Science and Engineering