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:
Nov. 03, 2009
Filed:
Apr. 02, 2004
Applicant:
Raghu N. Bhattacharya, Littleton, CO (US);
Inventor:
Raghu N. Bhattacharya, Littleton, CO (US);
Assignee:
Alliance for Sustainable Energy, LLC, Golden, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 3/00 (2006.01); H01L 31/0296 (2006.01); H01L 31/032 (2006.01); B05D 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides CBD ZnS/Zn(O,OH)S and spray deposited ZnS/Zn(O,OH)S buffer layers prepared from a solution of zinc salt, thiourea and ammonium hydroxide dissolved in a non-aqueous/aqueous solvent mixture or in 100% non-aqueous solvent. Non-aqueous solvents useful in the invention include methanol, isopropanol and triethyl-amine. One-step deposition procedures are described for CIS, CIGS and other solar cell devices.