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Title: Development of copper sulfide/cadmium sulfide thin-film solar cells

Technical Report ·
DOI:https://doi.org/10.2172/5485396· OSTI ID:5485396

Unencapsulated thin-film solar cells of the Cu/sub 2/S/CdS type have been aged in controlled flowing-gas ambients to characterize changes in their photovoltaic properties. Severe degradation occurring in wet O/sub 2/ ambients at room temperature probably accounts for the large short-circuit current losses reported earlier. Limited loss (<15% of initial values) in J/sub sc/ occurs at RT in dry oxygen. No loss can be attributed to moisture in Ar or N/sub 2/ ambients for exposure times greater than approx. 2 hrs. Direct measurements of optical absorption in the front Cu/sub 2/S layer would be facilitated by an integral CdS/Cu/sub 2/S detector on the back surface. Several techniques for making such a detector were successfully demonstrated.

Research Organization:
Westinghouse Research and Development Center, Pittsburgh, PA (USA)
DOE Contract Number:
AC02-77CH00178
OSTI ID:
5485396
Report Number(s):
SERI/PR-8143-1-T6; ON: DE82009398
Country of Publication:
United States
Language:
English