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CdCl2 Treatment, S Diffusion, and Recombination in Polycrystalline CdTe

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.2196127· OSTI ID:976980

Time-resolved photoluminescence measurements on glass/SnO{sub 2}/CdTe and glass/SnO{sub 2}/CdTe/CdS structures indicate that the CdCl{sub 2} 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 CdCl{sub 2} treatment.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-08GO28308
OSTI ID:
976980
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 10, 2006 Vol. 99; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English