Process for the preparation of thin films of cadmium sulfide and precursor solutions of cadmium ammonia thiocyanate complex useful therein
Patent 4360542 Issued on November 23, 1982. Estimated Expiration Date: 
March 31, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 31, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re30504 Polycrystalline thin film CdS/CdTe photovoltaic cell Process for thin film deposition of metal and mixed metal chalcogenides displaying semi-conductor properties Patent #: 4242374 InventorsAssigneeApplicationNo. 06/249530 filed on 03/31/1981US Classes:427/75, Mosaic or nonuniform coating136/260, Cadmium containing257/E21.464, Using liquid deposition (EPO)257/E31.006, Comprising only Cu 2 X/CdX heterojunction and X being Group VI element (EPO)427/226, HEAT DECOMPOSITION OF APPLIED COATING OR BASE MATERIAL427/76Coating is selenium, tellurium, or compound thereofExaminersPrimary: Hoffman, James R.International ClassesH01L 31/0336 (20060101)H01L 31/0264 (20060101) H01L 31/18 (20060101) H01L 21/368 (20060101) H01L 21/02 (20060101) AbstractA process is provided for the preparation of thin films of cadmium sulfide by deposition of cadmium sulfide formed in the thermal decomposition of an aqueous solution of cadmium ammonia thiocyanate complex, useful particularly in the preparation of thin cadmium sulfide films on electrically-conductive substrates useful in photovoltaic cells, and on thermally-conductive substrates useful in solar energy absorbers, for energy conversion systems. | |
