US Patent 7663057 - CIGS nanoparticle ink for photovoltaics

http://www.freepatentsonline.com/7663057.html

This latest patent from Nanosolar teaches the production of a higher quality solar energy absorber using nanoparticle ink. Claim 1 reads:

1. A method comprising:

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;

providing a plurality of nanoparticles, wherein the nanoparticles comprise at least one group IB based material; and

mixing the nanoparticles and the suspension to form an ink configured to be processed in one or more steps into a photovoltaic absorber layer.