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:
Oct. 28, 1986
Filed:
May. 28, 1985
Sixdeniel Faria, Towanda, PA (US);
GTE Products Corporation, Stamford, CT (US);
Abstract
A copper activated photoconductor is disclosed having reduced photosensitivity and the general formula X:Cu wherein X is selected from the group consisting of CdS, CdSe, and Cd(S,Se), and an iron content of from about 0.01% to about 0.05% by weight the presence of which reduces the photosensitivity of the photoconductor by about 30%. A process is disclosed for reducing the photosensitivity of a photoconductor. The process involves forming a relatively uniform admixture consisting essentially of copper, iron, the copper and iron being added in amounts which result in a copper level of from about 0.01% to about 0.09% and an iron content of from about 0.01% to about 0.05% by weight in the final reduced photosensitive photoconductor, from about 3% to about 10% cadmium chloride, from about 2% to about 30% by weight Y wherein Y is selected from the group consisting of S, Se, and mixtures thereof, and the balance being the photoconductor having the formula X:Cu with X as described above, and wherein Y is the same as the anionic composition of the photoconductor. The admixture is heated at a sufficient temperature for a sufficient time to form a reduced photosensitive photoconductor material which is cooled under nitrogen to ambient temperature. The portion of the material having an average particle size no greater than about 3 microns is separated from the balance of the material, washed with water to remove any water soluble impurities and dried to form the final reduced photosensitive photoconductor.