CdCl2 Treatment, S Diffusion, and Recombination in Polycrystalline CdTe

W. K. Metzger, D. Albin, M. J. Romero, P. Dippo, M. Young

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Time-resolved photoluminescence measurements on glassSn O2 CdTe and glassSn O2 CdTeCdS structures indicate that the Cd Cl2 process, without any S present, significantly reduces recombination. However, S diffusion is required for lifetimes comparable to those observed in high-efficiency solar cells. Low-temperature photoluminescence, cathodoluminescence, and scanning electron images indicate how defect chemistry, grain-boundary passivation, and morphology are affected by S diffusion and the Cd Cl2 treatment.

Original languageAmerican English
Article number103703
Number of pages6
JournalJournal of Applied Physics
Issue number10
StatePublished - 15 May 2006

NREL Publication Number

  • NREL/JA-520-39298


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