Abstract
Iron is one of the most common and detrimental metallic impurities in crystalline silicon solar cells, especially multicrystalline silicon.
This seminar will review the basic electronic properties of the various chemical forms of iron in silicon, and their relative impact in p- and n-type silicon. Methods for the sensitive detection of Fe will also be presented, in particular recently devleoped techniques for high resolution imaging of dissolved Fe concentrations using photluminescence.
Finally, the ability to remove dissolved Fe from silicon wafers by phosphorus, boron and aluminium gettering will be discussed.
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Brief Bio
Assoc Prof Daniel Macdonald received his PhD from the Australian National University (ANU), Canberra, in 2001. Since then he has worked as a Research Fellow at the ANU and as a Research Scientist at the Energy Research Centre of the Netherlands (ECN). Currently he is an Australian Research Council Future Fellow in the Research School of Engineering at the ANU, where his research is focused on defects and impurities in crystalline silicon solar cells, solar-grade silicon, and n-type silicon solar cells.
