Tuesday, September 23, 2008

US Patent 7427328 - Nanowire solution deposition using electrostatic attraction


This patent from Nanosys teaches a system for applying a solution of nanowires to a substrate which can be used to form electronic devices on plastic or other flexible substrates. Claim 1 reads:

1. A system for applying nanowires to a target surface, comprising:

a solution source that provides a nanowire solution, wherein said nanowire solution comprises a liquid containing a plurality of nanowires, wherein the plurality of nanowires comprise silicon having an oxide coating and which have a first negative charge;

a nozzle coupled to said solution source, wherein said nozzle has at least one output opening; and

a target surface comprising a charged material having a second charge which is opposite to said first charge, which second charge aids in attracting the nanowires from the nanowire solution to the target surface;

wherein said nozzle directs the nanowire solution through said at least one output opening onto the target surface.