Monday, October 24, 2011

US Patent 8038909 - Nanoparticle solution for fabrication of photovoltaic cell

This is the latest patent from NanoSolar teaching forming one of their nanoparticle solutions for printing solar cells on flexible and less expensive substrates. Claim 1 reads:

1. A method for fabricating a liquid containing intermixed elements of groups IB and IIIA, and VIA, comprising the steps of:

forming non-oxide nanoparticles containing elements from group IB; IIIA; and VIA;

combining the non-oxide nanoparticles to form a liquid that serves as an ink,

wherein forming the non-oxide nanoparticles includes spray co-precipitation of two or more reactants.