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Process and apparatus for formation of photovoltaic compounds

Patent ·
OSTI ID:6407189
;
The invention relates to a process and apparatus for formation and deposition of thin films on a substrate, in a vacuum, by evaporation of the elements to form a Zn /SUB x/ Cd/sub 1//sub -/ /SUB x/ S compound having a preselected fixed ratio of cadmium to zinc, characterized by the evaporation of cadmium and zinc at a rate the ratio of which is proportional to the stoichiometric ratio of those elements in the intended compound and evaporation of sulfur at a rate of at least twice the combined rates of cadmium and zinc, and at least twice that required by the stoichiometry of the intended compound.
Assignee:
University of Delaware
Patent Number(s):
US 4526809
OSTI ID:
6407189
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
CADMIUM COMPOUNDS
CADMIUM SULFIDE SOLAR CELLS
CADMIUM SULFIDES
CHALCOGENIDES
DEPOSITION
DIRECT ENERGY CONVERTERS
EQUIPMENT
FABRICATION
FILMS
INORGANIC PHOSPHORS
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SUBSTRATES
SULFIDES
SULFUR COMPOUNDS
SURFACE COATING
THIN FILMS
VACUUM COATING
ZINC COMPOUNDS
ZINC SULFIDE SOLAR CELLS
ZINC SULFIDES