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

Methods for improving solar cell open circuit voltage

Patent ·
OSTI ID:5516492
A method for producing a solar cell having an increased open circuit voltage is described. A layer of cadmium sulfide (CdS) produced by a chemical spray technique and having residual chlorides is exposed to a flow of hydrogen sulfide (H/sub 2/S) heated to a temperature of 400/sup 0/ to 600/sup 0/ C. The residual chlorides are reduced and any remaining CdCl/sub 2/ is converted to CdS. A heterojunction is formed over the CdS and electrodes are formed. Application of chromium as the positive electrode results in a further increase in the open circuit voltage available from the H/sub 2/S-treated solar cell. 8 claims.
Assignee:
Photon Power Inc.
Patent Number(s):
US 4178395
OSTI ID:
5516492
Country of Publication:
United States
Language:
English