Physical mechanisms of boron diffusion gettering of iron in silicon

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© 2010 Wiley-Blackwell. This is the post print version of the following article: Vähänissi, V. & Haarahiltunen, A. & Talvitie, H. & Yli-Koski, M. & Lindroos, J. & Savin, Hele. 2010. Physical mechanisms of boron diffusion gettering of iron in silicon. Physica Status Solidi (RRL). Volume 4, Issue 5-6. 136-138. DOI: 10.1002/pssr.201004105, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/pssr.201004105/abstract
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Volume Title

School of Electrical Engineering | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2010

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Degree programme

Language

en

Pages

136-138

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Physica Status Solidi (RRL), Volume 4, Issue 5-6

Abstract

We have studied the boron diffusion gettering (BDG) of iron in single crystalline silicon. The results show that iron is gettered efficiently by electrically inactive boron, which leads to gettering efficiencies comparable to phosphorus diffusion gettering (PDG). In addition we discuss the different physical mechanisms behind BDG. We also consider the possibilities of using boron diffusion gettering in solar cell fabrication and discuss the role of boron and iron concentration in the optimization of gettering efficiency.

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Keywords

boron diffusion gettering, B−Si precipitates, iron, silicon solar cells

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Citation

Vähänissi, V. & Haarahiltunen, A. & Talvitie, H. & Yli-Koski, M. & Lindroos, J. & Savin, Hele. 2010. Physical mechanisms of boron diffusion gettering of iron in silicon. Physica Status Solidi (RRL). Volume 4, Issue 5-6. 136-138. DOI: 10.1002/pssr.201004105.