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:
Apr. 07, 2015
Filed:
Aug. 08, 2013
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
Atsushi Yamanouchi, Kawasaki, JP;
Koichi Misumi, Hillsboro, OR (US);
Akimasa Nakamura, Kawasaki, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
Abstract
A method of producing a metal chalcogenide dispersion usable in forming a light absorbing layer of a solar cell, the method including: a metal chalcogenide nano particle formation step in which at least one metal or metal compound selected from the group consisting of a group 11, 12, 13, 14 or 15 metal or metal compound, a water-containing solvent and a group 16 element-containing compound are mixed together to obtain metal chalcogenide nano particles; and an addition step in which a compound (1) represented by general formula (1) is added to the metal chalcogenide nano particles, thereby obtaining a metal chalcogenide dispersion (wherein Rto Reach independently represents an alkyl group, an aryl group or a hydrogen atom; provided that at least one of Rto Rrepresents a hydrocarbon group).