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Title: Process for producing cadmium sulfide on a cadmium telluride surface

A process is described for producing a layer of cadmium sulfide on a cadmium telluride surface to be employed in a photovoltaic device. The process comprises providing a cadmium telluride surface which is exposed to a hydrogen sulfide plasma at an exposure flow rate, an exposure time and an exposure temperature sufficient to permit reaction between the hydrogen sulfide and cadmium telluride to thereby form a cadmium sulfide layer on the cadmium telluride surface and accomplish passivation. In addition to passivation, a heterojunction at the interface of the cadmium sulfide and the cadmium telluride can be formed when the layer of cadmium sulfide formed on the cadmium telluride is of sufficient thickness. 12 figs.
Inventors:
; ;
Issue Date:
OSTI Identifier:
264548
Assignee:
Midwest Research Inst., Kansas City, MO (United States) PTO; SCA: 140501; PA: EDB-96:118279; SN: 96001625896
Patent Number(s):
US 5,541,118/A/
Application Number:
PAN: 8-446,466
Contract Number:
AC36-83CH10093
Resource Relation:
Other Information: PBD: 30 Jul 1996
Research Org:
Midwest Research Institute
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; CADMIUM SULFIDE SOLAR CELLS; FABRICATION; CADMIUM TELLURIDE SOLAR CELLS; CADMIUM TELLURIDES; CHEMICAL REACTIONS; HYDROGEN SULFIDES; CADMIUM SULFIDES; SYNTHESIS

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