NOVELTY - Aerosol jet metal conductive ink for aerosol jet printing, comprises coated or uncoated metal particles; and a high boiling point and low vapor pressure solvent or mixture of solvents; where the viscosity of the ink is not greater than 1000 cP at a shear rate of at or about 10/second at 25 degrees C.    USE - The aerosol jet metal conductive ink is useful for aerosol jet printing; for application of metal to substrate using aerosol jet printing; and for producing conductive structure on substrate, where the substrate is a solar cell wafer. The aerosol jet UV curable dielectric ink is useful for application of dielectric to substrate using aerosol jet printing; and for producing dielectric coating on substrate (all claimed).    ADVANTAGE - The invention provides aerosol jet UV curable dielectric ink compositions that exhibit transparency, storage stability, and very good print quality and print stability, thus enabling the formation of very fine dielectric features on a variety of substrates.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) a method of preparing the aerosol jet metal conductive ink comprising selecting as ingredients a coated or uncoated metal particle, a high boiling point and low vapor pressure solvent or mixture of solvents, and optionally a dispersant or mixture of dispersants, an adhesion promoter, and additive or its combinations; and mixing the ingredient until combined to yield the aerosol jet metal conductive ink;    (2) a method of aerosol jet printing, comprising aerosol jet application of aerosol jet metal conductive ink to a substrate to form an ink layer on the substrate;    (3) a method of applying conductive structures on a component of a photovoltaic device, comprising aerosol jet application of the aerosol jet metal conductive ink to the component of the photovoltaic device to form a conductive structure;    (4) a method for minimizing line spreading of an aerosol jet uncoated or coated metal conductive ink on adjacent surfaces of a combination substrate, comprising pre-treating the combination substrate such that the total resultant surface energy of the 2 adjacent surfaces of the combination substrate differs by less than about 25%;    (5) an aerosol jet uncoated or coated metal conductive ink that forms a conductive line on a substrate when deposited on the substrate using an aerosol jet printer, where the average width of the line is not greater than about 20 mu m and the aerosol jet printer can run continuously for at least 5 hours without inducing a deviation greater than 10% in the printed line width; an aerosol jet glass-coated metal conductive ink that forms a seed layer line on a substrate when deposited on the substrate using an aerosol jet printer, where the average width of the line is not greater than about 40 mu m and the aerosol jet printer can run continuously for at least 5 hours without inducing a deviation greater than 10% in the printed line width; an aerosol jet uncoated or coated metal conductive ink that has a viscosity of not greater than 1000 cP at a shear rate of about 10/second at room temperature that when deposited on a substrate in one pass using an aerosol jet printer forms a printed ink line having a width 20 microns or less and having a height to width ratio of greater than or equal to 0.02; or an aerosol jet uncoated or coated metal conductive ink that when printed using an aerosol jet printer and treated by thermal sintering produces a printed metal ink having a sheet resistance less than 5 ohms/square; or an aerosol jet uncoated or coated metal conductive ink that, when printed on a substrate and sintered under conditions that allow the printed ink to reach resistivity entitlement, has a resistivity that is not greater than about 5 times the resistivity of the pure bulk metal in the ink;    (6) an aerosol jet UV curable dielectric ink suitable for aerosol jet printing comprising one or more amine-modified poly ether aery late oligomers; one or more acrylic monomers; one or more non-yellowing photoinitiators; and optionally one or more additives; where the aerosol jet UV curable dielectric ink: has a viscosity between 20 cP and 1000 cP at a shear rate of about 10/second at 25 degrees C; and prints a continuous line using an aerosol jet printer having a width that does not vary by more than 20% over a 5 hour period; an aerosol jet UV curable dielectric ink that when printed on a substrate using an aerosol jet printer produces a line having a width not greater than 50 microns having an aspect ratio (height to width) greater than or equal to 0.02, when printed in one pass using a 150 micron tip; an aerosol jet UV curable dielectric ink that at a deposited thickness of at or about 3 mu m is greater than 95% transparent in the optical spectrum; an aerosol jet UV curable dielectric ink that does not discolor upon exposure to a temperature of 200 degrees C for up to 30 minutes; an aerosol jet UV curable dielectric ink that does not discolor upon exposure to a temperature of 230 degrees C for up to 10 minutes; an aerosol jet UV curable dielectric ink that adheres equally well to glass and indium tin oxide (ITO) substrates, as well as to metal deposited on top of the dielectric ink; or an aerosol jet UV curable dielectric ink that is compatible with an uncoated or coated metal particle conductive ink as measured by the ability to print continuous conductive metal lines of the conductive ink having a width not greater than 20 mu m on top of the dielectric ink film with good edge definition;    (7) a method of aerosol jet printing a dielectric on a substrate, comprising aerosol jet deposition of aerosol jet UV curable dielectric ink onto a substrate to form an ink film; and subjecting the ink film to actinic radiation; or subjecting the ink film to thermal curing;    (8) a method of surface preparation for aerosol jet printing of UV curable dielectrics onto ITO patterned glass substrate, comprising: (a) nitrogen plasma treatment of the substrate immediately followed by printing of the substrate; or (b) sonication of the substrate in isopropyl alcohol; or (c) a combination of step (a) and step (b);    (9) a method of aerosol jet printing of UV curable dielectrics onto ITO patterned glass substrate, comprising preparing the surface of the substrate by treatment with nitrogen plasma or sonication in isopropyl alcohol or its combination; aerosol jet deposition of aerosol jet UV curable dielectric ink onto the substrate to form an ink film; and subjecting the ink film to actinic radiation or thermal curing or its combination; and    (10) a method for minimizing line spreading of an aerosol jet dielectric ink on adjacent surfaces of a combination substrate, comprising pre-treating the combination substrate such that the total resultant surface energy of the 2 adjacent surfaces of the combination substrate differ by less than about 25%.