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U.S. Department of Energy
Office of Scientific and Technical Information

Polycrystalline photovoltaic cell

Patent ·
OSTI ID:6539033
A photovoltaic cell is formed by combining a spray process, forming a crystalline layer containing cadmium and sulfur, and an evaporation process, depositing copper chloride for converting to Cu/sub x/S. The crystals containing cadmium and sulfur are heated in an atmosphere of cadmium and chlorides to obtain crystals having at least one dimension greater than 0.5 micron and a planar layer of Cu/sub x/S is formed on the large crystals. A layer of Cu/sub x/S having a thickness of 0.5-1.0 micron is obtained. Electrodes are formed from evaporated gold or chromium or a metallic paste including silver or copper. Zn/sub x/Cd/sub 1-x/S may be substituted for CdS through at least part of the crystalline layer for improved voc.
Assignee:
Photon Power Inc
Patent Number(s):
US 4362896
OSTI ID:
6539033
Country of Publication:
United States
Language:
English