Low-Temperature Lamination of Perovskite Solar Modules

… more less Low-temperature lamination is a way to seal perovskite modules without cooking them. Lamination is the step that presses the glass, encapsulant and cell together into one solid package. In a standard line the stack sits in a vacuum press at about 150 °C for roughly 10 to 20 minutes. Silicon cells take this easily. A perovskite cell may not. The heat can drive off part of the absorber, soften organic transport layers such as spiro-OMeTAD, and let metal or additives move between layers. The press can also crack brittle films, and trapped air bubbles leave weak spots where water can collect later. You would see the damage as a drop in Voc or fill factor right after sealing, before any outdoor time. Makers fight this in three ways. They pick encapsulants that melt and bond near 100 to 120 °C. They use more heat-tolerant perovskite compositions. They swap fragile organic contacts for sturdier inorganic ones. Each choice has a cost, such as weaker bonding to glass or a harder recipe. Always compare a cell's J-V curve before and after lamination. After this Concept you can explain why standard lamination harms perovskite cells and pick changes that make sealing safer.