Presentation Information
[10a-PB1-31]Effects of Inkjet Parameters Considering Droplet Variations on CsFA Perovskite Film Quality and Application to 70 mm Square Modules
〇Kotone Uchiyama1, Tomoyuki Tobe2, Ryoto Funayama3, Nao Saito1, Tsutomu Miyasaka1, Masashi Ikegami1 (1.Toin Univ. of Yokohama, 2.KISTEC, 3.Kishu Giken Kogyo)
Keywords:
Inkjet,Droplet Size,Module
Although inkjet printing is a promising process for mass-producing perovskite solar cells (PSCs), variations in droplet size caused by daily maintenance remain a challenge. While total droplet volume per unit area can guide film thickness control, certain preparation conditions deviate from expectations. In this study, using a single-nozzle system, we fabricated devices by controlling stage and head temperatures as well as droplet states. Through scanning electron microscopy (SEM) analysis of the film microstructures, we clarified the differences between predictable and unpredictable conditions, aiming to establish a printing parameter setup for enhanced process robustness and apply it to 70 mm square modules.