A guide to solar cells using Elkem Solar Silicon (ESSâ¢)

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• The Elkem Solar process route and ESS compared to polysilicon from the Siemens technology. • Qualification of ESS as a new solar grade silicon product • Summary 12 Developing people - creating value 22.06.2011
Qualification of ESS as a new solar grade silicon product – some challenges Light Induced Degradation Boron-Oxygen complexes Fe-B pairs Reverse Breakthrough Voltage (RBV) Shunts Thermal breakdown Long-term degradation issues At [Fe]
Page 1 and 2: A guide to solar cells using Elkem
Page 3 and 4: Elkem Solar - position in the value
Page 5 and 6: Production of polysilicon 1) No rec
Page 7 and 8: CO2 emissions depend on location an
Page 9 and 10: [B] in ingot increases with height
Page 11: The Elkem Solar process is a robust
Page 15 and 16: Light Induced Degradation due to B-
Page 17 and 18: Light Induced Degradation due to B-
Page 19 and 20: Efficiencies obtained with ESS-base
Page 21 and 22: Long-term degradation Elkem Solar h

A guide to solar cells using Elkem Solar Silicon (ESSâ¢)

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A guide to solar cells using Elkem Solar Silicon (ESSâ¢)