Influence of AlOx Interlayers on LeTID Kinetics in Ga-Doped Cz-Si

Abstract: Light and elevated temperature-induced degradation (LeTID) is causing a reduction in efficiency especially in p-type silicon based solar cells. It is assumed to be strongly influenced by the hydrogen content in the bulk material. The presented work focuses on the impact of differently thick (5-25 nm) atomic layer-deposited aluminum oxide (AlOx) interlayers underneath the hydrogen-rich silicon nitride (SiNy:H) capping layer. The interlayer acts as a diffusion barrier for H during the firing step. It is demonstrated that the AlOx interlayer has a comparable effect on the LeTID kinetics in Ga-doped Cz-Si (Cz-Si:Ga) as it is observed in B-doped Cz-Si (Cz-Si:B). Additionally, it substantially minimizes lifetime degradation in the Cz-Si:Ga sample. With a determined ratio of electron to hole capture cross sections k=26(3), the degradation phenomena are attributed to the LeTID kinetics. Deposition of AlOx barrier layers exceeding 10 nm in thickness does not yield additional positive effect.... https://www.tib-op.org/ojs/index.php/siliconpv/article/view/842

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Influence of AlOx Interlayers on LeTID Kinetics in Ga-Doped Cz-Si ; volume:1 ; year:2023
SiliconPV conference proceedings ; 1 (2023)

Creator
Kamphues, Joshua
Schmid, Andreas
Fischer-Süßlin, Ronja
Hahn, Giso
Geml, Fabian

DOI
10.52825/siliconpv.v1i.842
URN
urn:nbn:de:101:1-2406241123222.011659026627
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:45 AM CEST

Data provider

This object is provided by:
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.

Associated

  • Kamphues, Joshua
  • Schmid, Andreas
  • Fischer-Süßlin, Ronja
  • Hahn, Giso
  • Geml, Fabian

Other Objects (12)