Halocell Energy’s PT1 Platinum Paste has been formulated to be applied using a screen printer, providing films with excellent uniformity and reproducibility. Halocell Energy’s PT1 Platinum Paste is oil-based and formulated for screen printing using a synthetic 100T mesh screen (or similar). After drying, this paste must be fired at or above 420°C. This results in uniformly distributed platinum nanoclusters, providing good transparency and high catalytic activity for the electrochemical reduction of I3- to I-. Halocell Energy’s PT1 Platinum Paste provides films with excellent uniformity and performance, virtually independent of the operator, and can be used for DSC pilot production.