Synthesis of metallic nanoparticle dispersions capable of sintering at low temperatures
First Claim
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1. A method of synthesizing a metallic nanoparticle composition, comprising:
- dissolving silver nitrate in water and combining the dissolved silver nitrate with an admixture comprising water, a base, a carboxylic acid including from 3 to 7 carbons, and a reducing agent, so as to give rise to one or more metallic nanoparticles comprising silver.
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Abstract
A process is described for the synthesis of metallic nanoparticles by chemical reduction of metal salts in the presence of organic ligands capable of binding to the metal particle surfaces and stabilizing them against agglomeration. The resultant nanoparticles or dispersions of the particles can be sintered into highly conductive films or traces at temperatures as low as 80° C. in 10 minutes or less.
51 Citations
17 Claims
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1. A method of synthesizing a metallic nanoparticle composition, comprising:
dissolving silver nitrate in water and combining the dissolved silver nitrate with an admixture comprising water, a base, a carboxylic acid including from 3 to 7 carbons, and a reducing agent, so as to give rise to one or more metallic nanoparticles comprising silver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of forming a conductive cohesive film on a substrate, comprising:
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depositing a metallic nanoparticle composition comprising silver; and curing the composition so as to form a conductive, cohesive film comprising a plurality of sintered metallic nanoparticles, wherein the nanoparticle composition is made by dissolving silver nitrate in water and combining the dissolved silver nitrate with an admixture comprising water, a base, a carboxylic acid including from 3 to 7 carbons, and a reducing agent, second so as to give rise to one or more metallic nanoparticles comprising silver. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification