Phang, Sieu Pheng; Liang, Wensheng; Wolpensinger, Bettina; Kessler, Michael Andreas; MacDonald, Daniel
The suitability of using a boron-rich layer (BRL) formed during boron diffusion as a gettering layer for n-type silicon solar cells is investigated. We have studied the gettering effectiveness, generation of dislocations and associated bulk lifetime degradation, and the impact of the BRL on the saturation current density, for different thickness of BRL and postoxidation conditions. Our results show that a BRL deposited using BBr 3-based furnaces is very effective at gettering interstitial Fe,...[Show more]
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