Patent ID: 10654056

Abstract:
A deposition method includes: (1) providing a nozzle structure including: (a) at least one corona generator having an elongated charge emitting surface; and (b) at least one aerosol channel adapted to guide an aerosol along a flow path past the at least one corona generator; (2) generating an aerosol of a precursor solution; (3) applying to the at least one corona generator a positive or negative voltage of 1 kV-100 kV with respect to the substrate to generate a corona; and (4) flowing the aerosol through the at least one aerosol channel, along the flow path near the at least one corona generator and toward the surface of the substrate so as to charge the aerosol with ions emitted from the at least one corona generator to form charged droplets which are attracted to and deposited on the substrate, wherein the elongated charge emitting surface is a wire or blade edge, which is substantially parallel to the surface of the substrate and substantially perpendicular to the flow path, provided that the at least one corona generator does not consist of two blades. Inventive nozzle structures are also described.