Solar cell with high aspect ratio gridlines supported between co-extruded support structures

An intermediate structure comprising:

• a substrate having a surface with a plurality of
• elongated composite structures on the surface of the substrate, each
• composite structure comprising a central line structure:
• the central line structure comprising a first co-extruded non-Newtonian fluid,
• wherein the first co-extruded non-Newtonian fluid comprises a silver paste, and
• a sacrificial support structure comprising a second co-extruded non-Newtonian fluid that is disposed on the central line structure such that side portions of the support structure are horizontally adjacent to the central line structure without substantial intermixing of the first co-extruded non-Newtonian fluid and second co-extruded non-Newtonian fluid, and wherein the second co-extruded non-Newtonian fluid is configured to maintain a cross sectional shape of the central line structure,
• wherein both the side portions of the sacrificial support structure and the central line structure are in direct contact with the surface of the substrate, and wherein each sacrificial support structure is localized to only a single central line structure;
• wherein the plurality of central line structures cover less than 4% of a surface area of said substrate.