A guide to solar cells using Elkem Solar Silicon (ESSâ¢)
A guide to solar cells using Elkem Solar Silicon (ESSâ¢)
A guide to solar cells using Elkem Solar Silicon (ESSâ¢)
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Light Induced Degradation due <strong>to</strong> B-O complex<br />
Oxygen:<br />
LID due <strong>to</strong> B-O complexes is only significant if the interstitial oxygen [O i ] is above ~5*10 17 /cm 3<br />
(or > ~6 ppm w ) (Ghosh et al., EUPVSEC, 2006).<br />
Q-Cells claims that for good “UMG-Si” qualities the oxygen content in the feeds<strong>to</strong>ck<br />
is not a relevant problem. The oxygen content in the ingot is determined by the crystallization<br />
process only (Petter et al., <strong>Silicon</strong> for the Chemical and <strong>Solar</strong> Industry X, 2010).<br />
17<br />
Developing people - creating value<br />
22.06.2011
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