The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 1983
Filed:
Jun. 17, 1981
Applicant:
Inventor:
Ronald A Schneider, Albany, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; B05D / ;
U.S. Cl.
CPC ...
427 75 ; 427 74 ; 136260 ;
Abstract
A copper stabilized dipping solution for a photovoltaic device incorporating a Cu.sub.x S layer. The dipping solution contains copper metal which stabilizes the solution by providing a source of copper to continuously reduce CU.sup.++ ions to Cu.sup.+ ions. The copper has no adverse effect on the topochemical formation of a copper sulfide layer on, for example, a semiconductor cadmium sulfide layer in a photovoltaic device. Preferably, the copper stabilized dipping solution has a pH less than about 4.5 and includes counter ions such as chloride or bromide ions.