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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
An ink composition for making a conductive silver structure comprises a silver salt and a complex of (a) a complexing agent and a short chain carboxylic acid or (b) a complexing agent and a salt of a short chain carboxylic acid, according to one embodiment. A method for making a silver structure entails combining a silver salt and a complexing agent, and then adding a short chain carboxylic acid or a salt of the short chain carboxylic acid to the combined silver salt and a complexing agent to form an ink composition. A concentration of the complexing agent in the ink composition is reduced to form a concentrated formulation, and the silver salt is reduced to form a conductive silver structure, where the concentrated formulation and the conductive silver structure are formed at a temperature of about C. or less.
Walker, Steven B. (Champaign, IL), Lewis, Jennifer A. (Cambridge, MA)
14/ 368,202
December 20, 2012
FEDERALLY FUNDED RESEARCH OR DEVELOPMENT [0001] The subject matter of the present disclosure was developed with the support of the U.S. Department of Energy, Materials Sciences and Engineering Division, under Award No. DEFG-02-07ER46471 and the NSF Center for Nanoscale Chemical-Electrical Mechanical Manufacturing Systems, under Grant No. DMI-0328162. The U.S. Government has certain rights in this invention.