BRISTOL, England, Sept. 15, 2011 — DuPont Microcircuit Materials has introduced the low-temperature-processing DuPont Solamet PV414 photovoltaic (PV) metallization paste designed for rotary screen printing to enable high-speed roll-to-roll processing of thin and flexible solar cells and modules. Solamet photovoltaic metallization pastes are key to higher efficiency and lower system costs for crystalline silicon and thin-film photovoltaics. Roll-to-roll processing can offer productivity benefits to thin-film photovoltaic module manufacturers. Metallization pastes must be carefully adapted for rotary screen printing on thin-film substrates to ensure that material and cost are not wasted and that high efficiency is maintained. Standard metallization pastes typically do not perform well with rotary screen printing, so the company used the performance characteristics of the latest thin-film metallization chemistry platform, Solamet PV41x, and optimized it. The paste is engineered to ensure high printability and line resolution while maintaining good adhesion to the transparent conductive oxide layer, low contact resistance and good conductivity. Additional products in the Solamet PV41x low-temperature metallization family are adaptable to copper indium gallium selenide, cadmium telluride, silicon heterojunction, dye-sensitized cells and organic photovoltaic technologies.