[10a-PB1-1~33] 12.5 Organic, Perovskite, and hybrid solar cells

[10a-PB1-30] Proposal of a Facile Method for Identifying Degradation Origins Caused by Non-Uniform Film Formation in Perovskite Solar Cells

〇Risa Minai¹, Tomoyuki Tobe^1,2, Nao Saito¹, Tsutomu Miyasaka¹, Masashi Ikegami¹ (1.Toin Univ., 2.KISTEC.)

Keywords:

perovskite,durability,EL measurement

While improving durability of perovskite solar cells (PSCs) is essential for their scaling-up, analyzing degradation origins caused by deposition non-uniformity typically requires expensive equipment. In this study, we fabricated series-connected solar cells on 70 mm square ITO-PET substrates and investigated the correlation between coating methods, including inkjet printing, and device durability. Furthermore, focusing on the device's electroluminescence (EL) emission near 800 nm, we evaluated a simple method to identify degradation origins using a general-purpose infrared camera, aiming to establish a rapid screening technique.