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Scanning X-ray fluorescence microspectroscopy of metallic impurities in solar-grade silicon

MacDonald, Daniel; Rougieux, Fiacre; Mansoulie, Yves; Tan, Jason; Paterson, David; Howard, Daryl; de Jonge, Martin; Ryan, Christopher G


A rapid scanning synchrotron-based X-ray fluorescence microprobe technique is applied to relatively impure crystalline silicon feedstock for solar cells. The results reveal the distributions of metallic impurities in the material over regions several millimetres in size, allowing scans across several grains. Relatively high concentrations of Fe, Cu and Zn were observed, with traces of Mn and Ni. The metals were mostly present as discrete particles up to 60mm in size, while Cu was more uniformly...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Physica Status Solidi A
DOI: 10.1002/pssa.201026137


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