Compositions comprising eutectic metal alloy nanoparticles
Provided herein is a composition for eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers and at least one organoamine stabilizer. Also provided herein is a process for preparing eutectic metal alloy nanoparticles comprising mixing at least one organic polar solvent, at least one organoamine stabilizer, and a eutectic metal alloy to create a mixture; sonicating the mixture at a temperature above the melting point of the eutectic metal alloy; and collecting a composition comprising a plurality of eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers. Further disclosed herein are hybrid conductive ink compositions comprising a component comprising a plurality of metal nanoparticles and a component comprising a plurality of eutectic metal alloy nanoparticles.
1. A composition for conductive inks consisting of:
a plurality of eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers;
at least one organoamine stabilizer; and
at least one organic polar solvent.
2. The composition for conductive inks of claim 1 , wherein the eutectic metal alloy nanoparticles comprise Field's metal alloy.
3. The composition for conductive inks of claim 1 , wherein the at least one organic polar solvent is chosen from the group consisting of propylene glycol methyl ether acetate, di(propylene glycol) methyl ether acetate, (propylene glycol) methyl ether, di(propylene glycol) methyl ether, methyl isobutyl ketone, diisobutyl ketone, and 1-phenoxy-2-propanol.
4. The composition for conductive inks of claim 1 , wherein the eutectic metal alloy nanoparticles have an average particle size ranging from about 50 nanometers to about 800 nanometers.
5. The composition for conductive inks of claim 1 , wherein the eutectic metal alloy nanoparticles have an average particle size ranging from about 60 nanometers to about 250 nanometers.
6. The composition for conductive inks of claim 1 , wherein the at least one organoamine stabilizer is chosen from the group consisting of propylamine, butylamine, pentylamine, hexylamine, heptylamine, octylamine, 3-methoxypropylamine, pentaethylenehexamine, 2,2-(ethylenedioxy)diethylamine, tetraethylenepentamine, triethylenetetramine, diethylenetriamine, 1,11-diamino-3,6,9-trioxaundecane, 2,2′-(ethylenedioxy)bis(ethylamine), and 2-(2-aminoethoxy)ethylamine.