Patent ID: 8088309

Claim:
A method for fabricating a solar cell formed using a liquid containing intermixed elements of groups IB, IIIA, and VIA, comprising the steps of: a) forming by sonochemical method non-oxide nanoparticles; b) providing a suspension comprised of one or more liquid metals, wherein the one or more liquid metals comprises at least one group IIIA based material; c) mixing the non-oxide nanoparticles of step a) and the suspension of one or more liquid metals of step b) to form an ink containing both the non-oxide nanoparticles and the one or more liquid metals; wherein the nanoparticles are in a desired particle size range of between about 0.1 nm and about 500 nm in diameter, wherein a majority of the mass of the nanoparticles range in size from no more than about 40% above or below an average particle size, or, if the average particle size is less than about 5 nanometers, from no more than about 2 nanometers above or below the average particle size.