Cristin-resultat-ID: 42724
Sist endret: 6. april 2010, 09:39
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2007

INFLUENCE OF NUCLEATION AND CONTAMINATION FROM CRUCIBLE AND COATING ON DISLOCATION DENSITY AND LIFETIME OF MULTICRYSTALLINE SILICON

Bidragsytere:
  • Gaute Stokkan og
  • Espen Olsen

Bok

The Proceedings of the 22nd European Photovoltaic Solar Energy Conference
ISBN:
  • 3-936338-22-1

Utgiver

WIP-Renewable Energies

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2007
ISBN:
  • 3-936338-22-1

Beskrivelse Beskrivelse

Tittel

INFLUENCE OF NUCLEATION AND CONTAMINATION FROM CRUCIBLE AND COATING ON DISLOCATION DENSITY AND LIFETIME OF MULTICRYSTALLINE SILICON

Sammendrag

Three 12 kg ingots were grown using both standard slip cast crucible and standard coating as well as ultra clean crucible and coating. Also the conditions during crystallisation were varied. The ingots were characterised for lifetime and dislocation density. The ingots made using ultra clean coating and crucibles showed higher lifetime than the standard ingot. One of these also had very low dislocation density, and the as grown lifetime of this ingot reached ~130 µs. The two ingots with lower dislocation density both showed long linear features in the bottom wafers. When studied in EBSD it appears that the high lifetime ingot was dominated by and oriented grains, which probably are a result of dendritic nucleation. The wafer from the ingot with poor lifetime also was dominated by few, although different orientations. We believe the lower dislocation density is related to the nucleation phase. Two models that can explain this feature were discussed.

Bidragsytere

Gaute Stokkan

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet

Espen Olsen

  • Tilknyttet:
    Forfatter
    ved SINTEF AS
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Resultatet er en del av Resultatet er en del av

The Proceedings of the 22nd European Photovoltaic Solar Energy Conference.

Ossenbrink, Heinz. 2007, Vitenskapelig antologi/Konferanseserie
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