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Evaluation for Fe Gettering Ability of p+ and n+ Layersfor High-Efficiency Bifacial Si Solar Cell Fabrication

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Abstract Gettering behaviors of Fe into Si with p+ and n+ layers are investigated by deep-level transient spectroscopy. The samples with p+ layer show sheet resistance independence for gettering effect. In con...trast, the samples with n+ layer show sheet resistance dependence, indicating that sheet resistance less than 300Ω/□ is effective for the gettering. Furthermore, the sample with p+ and n+ layers shows that a n+ layer is more effective than a p+ layer. The gettering mechanisms of Fe in Siwith p+ and n+ layer are discussed in details.show more

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Created Date 2009.05.16
Modified Date 2020.11.02

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