Presentation Information
[7p-P08-4]Evaluation of perovskite film quality by in-situ photoluminescence measurement
〇(M1C)Kenshin Magata1, Kenichi Yamashita1, Daichi Okada1, Ryota Okuyama1, Kohei Uezono1 (1.Kyoto Inst.tech)
Keywords:
perovskite,solar cells,thin film
Film formation conditions are critical for improving the efficiency of perovskite solar cells. In this study, we evaluated the effect of the spin speed in the second stage of the two-step spin-coating method on thin-film formation using in-situ photoluminescence measurements. FA0.7MA0.3PbI3 thin films were fabricated at 1800, 3600, and 4500 rpm. The results confirmed that the spin speed significantly influences film thickness, crystallization, and surface morphology. At higher spin speeds, improved crystalline uniformity and suppression of pinholes were observed, indicating that spin-coating conditions are crucial for achieving high-quality films.